From the question that we have, the solution that we have gotten is that 4 cubic blocks with a side length of foot would be required to find the volume of the glass case
How to solve the problemWe have been given that a glass case is in shape of a rectangular prism.
The volume of a single cubic block is:
We have
Volume of block
= (1/5) * (1/5) * (1/5)
= 1/125 cubic feet
Next we will now have to divide the volume of the glass case by the volume of a single cubic block:
V olume of case / Volume of the block =
(4/125) / (1/125)
= 4
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A glass case is in the shape of a rectangular prism. The volume of the case is cubic 4/125 foot. How many cubic blocks with a side length of 1/5 foot would be required to find the volume of the glass case?
K
Let u = 4i-3j, and v= -2i+ 7j. Find u-v.
U-V= (Type your answer in terms of i and j.)
The value of u -v is 6i - 10j.
We have,
u = 4i-3j, and v= -2i+ 7j.
So, u - v
= (4i - 3j) - (-2i + 7j)
= 4i - 3j + 2i - 7j
= (4i + 2i) + (-3j - 7j)
= 6i - 10j
Thus, the resultant vector is 6i - 10j.
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Solve the following equation exactly on the interval [0,2π).
3cos2θ−2cosθ−2=0
Select all correct answers, assuming they are rounded to two decimal places.
Select all that apply:
θ≈1.24
θ≈2.15
θ≈2.41
θ≈3.55
θ≈4.13
θ≈5.36
Answer:θ≈2.15
θ≈4.13 are correct
Step-by-step explanation:We can solve this quadratic equation in cos(θ) by using the substitution u = cos(θ):
3u^2 - 2u - 2 = 0
We can use the quadratic formula to solve for u:
u = (-b ± sqrt(b^2 - 4ac)) / 2a
where a = 3, b = -2, and c = -2. Substituting these values, we get:
u = (2 ± sqrt(4 + 24)) / 6
u = (2 ± 2sqrt(7)) / 6
Simplifying this expression, we get:
u = (1 ± sqrt(7)) / 3
Therefore, either:
Is it 65 and 5 bag variability????
The estimate of the population mean is 80 and the variability in the distribution is 120
The estimate of the population meanHere, we have
The dot plots
From the dot plots, we can see that the data are normally distributed
This means that the mean, the median and the mode are equal
From the distribution of the random variable, we have the following readings
mean = 80Hence, the estimate of the population mean is 80
The variability in the distributionHere, we use the range
So, we have
Variability = Highest - Least
This gives
Variability = 140 - 20
Variability = 120
So, the variability in the distribution is 120
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looking for answer and explination
1) Note the the linearization of th function f(X) at a =1 is l(x) = 2x-3
2) since l(x) = 2x-3, f(1.01) is = - 0.98
Linearization is the process of converting a nonlinear function's gradient with respect to all variables into a linear representation at that moment.
for the above prompt , we have to use the formula:
l (x) = f(a) + f' (a) (x-a)
where (a) is the value fo the function at point a
and f' (a) is the derivative of the function evaluated at point a.
Using a = 1, f(a) becomes:
f(1) = 2 (1) ⁵ - 8 (1) + 5
f (1) =-1
f(x) = 10x⁴ -8
So f' (1 ) when evalutated will give us the slope of the tangent line at x =1
Thus,
f (1 ) = 10 (1)⁴ -8
= 2
Hence substituting all the values into th e linearization formula we get:
l(x) = f( 1) + f '(1) (x-1)
= -1 + 2 *( x-1 )
= -1 + 2x - 2
= 2x -3
This means that the linearization of the function f(x ) at a= 1 is l(x) = 2x-3
b) Given the l(x) above, f(1.01) gives us:
l(x) = 2x -3
= 2 (1.01) -3
= - 0.98
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2. A set of 120 test scores are normally distributed
with a mean of 82 and a standard deviation of
5.
- The price of a gallon of regular gasoline at 75
a) What percent of the scores are between 72
and 872
b) What is the probability that a score is greater
than 77?
c) What is the probability that a score is less than
82 or greater than 92?
d) About how many students scored outside two
standard deviations of the mean?
a) What percent of gas stations sell a gallon of
a) The percent of the scores are between 72 and 87 is 77.45%
b) The probability that a score is greater than 77 is 84.13%
c) The probability that a score is less than 82 or greater than 92 is 52.28%
d) About 5 students scored outside two standard deviations of the mean.
a) To find the percent of scores between 72 and 87, we first need to standardize these scores. We can do this by subtracting the mean (82) and dividing by the standard deviation (5). This gives us:
z = (72 - 82) / 5 = -2
z = (87 - 82) / 5 = 1
We can then use a table of standard normal probabilities (also called a z-table) to find the probability of a score being between -2 and 1. This probability is 0.7745, or 77.45%
b) To find the probability that a score is greater than 77, we again need to standardize the score:
z = (77 - 82) / 5 = -1
Using the z-table, we can find the probability of a score being greater than -1 (which is the same as the probability of a score being less than or equal to 77). This probability is 0.1587, or 15.87% (rounded to two decimal places). To find the probability of a score being greater than 77, we subtract this probability from 1:
P(score > 77) = 1 - P(score <= 77) = 1 - 0.1587 = 0.8413, or 84.13%
c) To find the probability that a score is less than 82 or greater than 92, we can break this into two separate probabilities:
P(score < 82) + P(score > 92)
We can standardize these scores as follows:
z = (82 - 82) / 5 = 0
z = (92 - 82) / 5 = 2
Using the z-table, we can find the probabilities associated with these z-scores:
P(score < 82) = P(z < 0) = 0.5 (from the symmetry of the standard normal distribution)
P(score > 92) = P(z > 2) = 0.0228
Adding these probabilities together gives us:
P(score < 82 or score > 92) = 0.5 + 0.0228 = 0.5228, or 52.28%
d) Two standard deviations from the mean in either direction would be:
82 - (2 x 5) = 72
82 + (2 x 5) = 92
So any score below 72 or above 92 would be considered outside two standard deviations. To find how many students scored outside this range, we need to find the total proportion of scores that fall outside this range and multiply by the total number of scores.
To find the proportion of scores outside the range, we can use the same approach as in part c):
P(score < 72 or score > 92) = P(z < -2 or z > 2) = P(z < -2) + P(z > 2)
Using the z-table, we find:
P(z < -2) = 0.0228
P(z > 2) = 0.0228
Adding these probabilities together gives us:
P(score < 72 or score > 92) = 0.0228 + 0.0228 = 0.0456
So 4.56% of scores fall outside the range of 72 to 92. To find the number of students who scored outside this range, we can multiply this proportion by the total number of scores:
0.0456 x 120 = 5.472 ≈ 5
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Suppose that 3 items will be chosen from a group with 7 total items.
Given that order does not matter, how many different ways can the items be chosen?
A) 35
B)70
C)140
D)210
The number of ways of selecting 3 items from a total of 7 items, where order does not matter is (a) 35 ways.
The number of ways to choose three items from a group of seven, where order does not matter, is given by the combination formula:
⇒ C(n,r) = n!/(r! × (n-r)!),
where n is = total number of items, and r is = number of items to be chosen,
We have, total items (n) = 7 and items to be selected (r) = 3.
Substituting the values,
We get;
⇒ C(7,3) = 7!/(3! × (7-3)!),
⇒ 7!/(3! × 4!),
⇒ (7 × 6 × 5)/(3 × 2 × 1),
⇒ 35 ways.
Therefore, the correct option is (a).
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Look at image that is attached
Answer: Linear
Step-by-step explanation:
I can tell from the table because there is a difference of 4 between each y value.
I dont know what the other blanks will be because i cant see the options. But it shouldnt be too hard to fill out
The translation (x - 5,y + 11) is applied to a triangle. Maryanne makes a conjecture about the perimeter of the image of the triangle, tests the conjecture, and finds that it is true. What could have been her conjecture?
Answer: Maryanne's conjecture could have been that the perimeter of the image of the triangle will be the same as the perimeter of the original triangle.
Step-by-step explanation:
In the figure, PA and PB are tangent to circle O and PD bisects BPA. The figure is not drawn to scale.
For m
The measure of ∠BPO is 48°.
How to find the measure of ∠BPO?Since PD bisects ∠BPA, we can say:
∠AOC = ∠BOC .
Thus, ∠ BOC = 42°
Since PB is tangent to the circle, PBO = 90°.
Looking at triangle PBO, we can say:
∠BPO + ∠PBO + ∠BOC = 180 (angles in a triangle add up to 180)
∠BPO + 90 + 42 = 180
∠BPO + 132 = 180
∠BPO = 180 - 32
∠BPO = 48°
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Complete Question
Check image attached
Find the area of triangle ABC with the given parts. Round to the nearest tenth as necessary
The area of the given triangle is expressed as: 25.6 in²
What is the area of the triangle?We are only given two sides of the triangle and an angle and so we must find the length of the third side to be able to find the area. The length of the third side is gotten from cosine rule to get:
a = √(14.1² + 7.2² - 2(14.1 * 7.2)*cos 30.3)
a = 8.68 in
In order for us to calculate the area of triangle which has 3 sides, we will have to utilize the Heron's Formula.
From the formula, the area of a triangle (A) that has 3 sides a, b, and c is calculated via the formula:
A = √[s(s - a)(s - b)(s - c)]
where:
s denotes the semi-perimeter of the specific triangle given by the formula: s = (a + b + c)/2.
s = (8.68 + 14.1 + 7.2)/2
s = 14.99 in
Thus:
Area = √[14.99(14.99 - 8.68)(14.99 - 14.1)(14.99 - 7.2)]
Area = 25.6 in²
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Ellen bought a pedometer wristband to track how many steps she takes. Each day she recorded the number of steps in a table. At the end of the week, she found her mean number of steps was 10,000. She made a bar graph to show her daily steps for the week. Which graph could show Ellen’s steps?
THANKS SO MUCH!!!
Answer:
it is b got it right on my test
Step-by-step explanation:
The required graph that shows Ellen's steps where her mean steps for a week is 10000 is graph 2 where the data are as,
Day 1 = 11000 , Day 2 = 9000, Day 3 = 10000, Day 4 = 12000, Day 5 = 8000, Day 6 ≈ 10000, Day 7 ≈ 10000
Mean of ungrouped data is the average of all the values of the observation in the data set.
Mean = (Summation of all values in data set)/ (Number of observations)
Here there are 7 observations and the mean number of steps is 10000.
For graph 1 the values for each day of the week are as,
Day 1 = 8000 , Day 2 = 9000, Day 3 = 12000, Day 4 = 2000, Day 5 = 6000, Day 6 = 10000, Day 7 = 10000
Thus, the mean number of steps is = (8000+ 9000+ 12000+ 2000+ 6000+ 10000 + 10000) / 7
= 8143 (approximately) ≠ 10000
For graph 2 the values for each day of the week are as,
Day 1 = 11000 , Day 2 = 9000, Day 3 = 10000, Day 4 = 12000, Day 5 = 8000, Day 6 ≈ 10000, Day 7 ≈ 10000
Thus, the mean number of steps is = (11000+ 9000+ 10000+ 12000+ 8000+ 10000 + 10000) / 7
= 10000
For graph 3 the values for each day of the week are as,
Day 1 = 7000 , Day 2 = 14000, Day 3 = 11500, Day 4 = 10000, Day 5 = 4500, Day 6 = 6000, Day 7 = 11000
Thus, the mean number of steps is = (7000+ 14000+ 11500+ 10000+ 4500+ 6000 + 11000) / 7
= 9143 (approximately) ≠ 10000
For graph 4 the values for each day of the week are as,
Day 1 = 8000 , Day 2 = 9000, Day 3 = 9500, Day 4 = 10000, Day 5 = 9000, Day 6 = 7000, Day 7 = 11000
Thus, the mean number of steps is = (8000+ 9000+ 9500+ 10000+ 9000+ 7000 + 11000) / 7
= 9071 (approximately) ≠ 10000
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HELP ME PLEASE PICTURE INCLUDED
Answer:
0.67 million miles per day
Step-by-step explanation:
You want the average rate of change of the function d(t) = ∛(6t²) on the interval [4, 8], where d is in millions of miles, and t is in days.
Average rate of changeThe average rate of change of the function on the interval [a, b] is given by ...
rate of change = (d(b) -d(a))/(b -a)
As the table in the attachment shows, this is approximately ...
rate of change = (7.268 -4.579)/(8 -4) ≈ 0.67
The average rate of change on the interval 4 ≤ t ≤ 8 is about 0.67 million miles per day.
__
Additional comment
Mercury has an orbit of about 88 days at a distance of roughly 36 million miles from the Sun. Already at that distance, the General Theory of Relativity comes into play, making predictions from Newtonian physics somewhat problematic. It is unlikely this formula has any relation to reality for t much less than 200.
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Find x round your answer to nearest tenth of a deggre triangle that had 16 20 and x
In the given right triangle, the angle opposite the side of length 16 units has a measure of 49.6 degrees.
We have a right triangle with an unknown angle θ (measured in degrees), the opposite side length of 16 units, and a hypotenuse length of 21 units. We're given the formula for calculating the sine of an angle:
sin(θ) = opposite / hypotenuse
By substituting the values we know, we get:
sin(x) = 16 / 21
x = sin⁻¹(16 / 21)
x ≈ 49.6°
Therefore, in the given right triangle, the angle opposite the side of length 16 units has a measure of 49.6 degrees.
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PLEASE HELP (WILL GIVE BRAINLIEST
Answer:
cm^3 can be used to represent volume.
1. Find the area. 15 cm summ · 12 cm 20 cm
It seems there are two numbers missing between "15 cm summ" and "12 cm". Please provide the complete values so I can help you solve the problem.
The ratio of union members to nonunion members working for a company is 4 to 7. If there are 108 union members working for the company, what is the total number of employees?
The total number of employees in the company is 297 if ratio of union members to nonunion members working for a company is 4 to 7
The given ratio of union members to nonunion members, which is 4 to 7. This means that for every 4 union members, there are 7 nonunion members.
We are also given that there are 108 union members working for the company.
The total number of employees in the company be "x".
Let us from a proportional equation
4/11 = 108/x
To solve for x, we can cross-multiply and simplify:
4x = 1188
x = 297
Therefore, the total number of employees in the company is 297.
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A cone has an apex. True False
Answer:
True, a cone has an apex which is the point where the sides of the cone meet to form a tip.
opic: Choosing ping-pong balls without replacement.
There are 6 white and 3 orange ping-pong balls in a brown paper bag. Two balls are randomly chosen.
Enter your answers as fractions. They do not need to be reduced.
(The "Preview" simply displays your answer in nice mathematical text.
It does not mean that your answer is either right or wrong.)
a) How many total balls are in the bag at the start?
b) What is the probability that the 1st ball is orange?
P(1st = orange) =
c) What is the probability that the 2nd ball is also orange, given that the 1st ball was orange?
P(2nd = orange | 1st = orange) =
d) What is the probability that both the 1st and the 2nd balls are orange
a) The total number of balls in a bag is 9.
b) The probability that the first ball chosen is orange is 1/3.
c) The probability that the 2nd ball is also orange is 1/4.
d) The probability that both balls are orange is 1/12.
Given that:
Balls, White = 6 and Orange = 3
a) The total of ping-pong balls in the bag at the start is calculated as,
Total ball = 6 + 3
Total ball = 9
b) The probability that the first ball chosen is orange is calculated as,
P(Orange) = 3/9
P(Orange) = 1/3
c) There will be 8 balls in the bag, of which 2 are orange if the first ball selected was an orange ball. Then the probability is calculated as,
P(Orange) = 2/8
P(Orange) = 1/4
d) The product rule of probability may be used to determine the likelihood that the first and second balls are both orange:
P(Orange and Orange) = 1/3 x 1/4
P(Orange and Orange) = 1/12
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HELP ASAP!! ( failing my class lol pls help asappp )
What was the scale factor used?
Was the orientation preserved or changed?
Was congruence preserved or changed?
1) The scale factor of dilation is 1/3
2) The orientation is preserved in dilation of A to A'
3) The congruence is not preserved in dilation of A to A'
We know that the scale factor is nothing but the ratio of the size of the transformed image to the size of the original image.
Here from the attached graph we can observe that the square A is transformed to A'
The side length of square A is 18 units and the side length of square A' is 6
So, the scale factor would be,
r = A' / A
r = 6/18
r = 1/3
We know that a dilation preserves the shape and orientation of the figure, but changes the size of he figure.
So, the dilations do not preserve congruence, as it changes the size of a figure.
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2. A gift is packed in a rectangular box (rectangular prism) of dimensions 15 in, 10 in, and 8 in and it needs to be wrapped with gift paper. How much gift paper is required to wrap the gift box?
length= 5 in , width= 4 in, height= 3 in
length, l=16in
width, b=13in
thickness, t=3in
To Find:-
Area of wrapping paper required.
Explanation:-
Since, wrapping paper is to be wrapped over the whole rectangular box.Therefore, we have to calculate the total surface area of the rectangular box.

Therefore, 590 of paper is required to wrap the whole rectangular box.
Solve for a.
60°
a
60°
a = [? ]°
The value of a in the equation 60°a = [? ]° is dependent on the value of [? ].
Explanation:
To solve for a in the equation 60°a = [? ]°, we need to isolate a on one side of the equation. We can do this by dividing both sides of the equation by 60°:
60°a / 60° = [? ]° / 60°
This simplifies to:
a = [? ]° / 60°
Since we don't have the value of [? ]°, we cannot determine the exact value of a. However, we can simplify the expression by canceling out the ° units:
a = [? ] / 60
Therefore, the value of a is dependent on the value of [? ].
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Help plss will give brainliest and points
The new coordinates of dilated rectangle by scale factor of 1/4 are J(1, 2), K(3, 2), L(3, 1), and M(1, 1) we can draw figure.
We are given the coordinates of the vertices of a rectangle J(4,8), K(12,8), L(12,4), and M(4,4).
To dilate the rectangle by a scale factor of 1/4, we need to multiply each coordinate by 1/4.
Multiplying each x-coordinate by 1/4
x-coordinate of J: 4 * 1/4 = 1
x-coordinate of K: 12 * 1/4 = 3
x-coordinate of L: 12 * 1/4 = 3
x-coordinate of M: 4 * 1/4 = 1
Multiplying each y-coordinate by 1/4
y-coordinate of J: 8 * 1/4 = 2
y-coordinate of K: 8 * 1/4 = 2
y-coordinate of L: 4 * 1/4 = 1
y-coordinate of M: 4 * 1/4 = 1
Therefore, the coordinates of the dilated rectangle are: J(1,2), K(3,2), L(3,1), and M(1,1).
Using these new coordinates, we can draw the dilated rectangle by plotting the four vertices on a coordinate plane.
The dilated rectangle has the same shape and orientation as the original rectangle, but it has been reduced in size by a scale factor of 1/4.
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The question is on the image when u get the answer get back to me asap
Answer:
Step-by-step explanation:
y=-2x+2
What is 3/10 + 1/4 + 4/5 enter your answer in the box as a mixed number in simplest form
Answer:
[tex]1 \frac{7}{20} [/tex]
Step-by-step explanation:
Well you should find a common denominator for 10, 4 and 5 first to be able to mix them. Let's take 20 because it's the smallest number we can convert 10, and 4 and 5 to.
So
[tex] \frac{3 \times 2}{10 \times 2} + \frac{1 \times 5}{4 \times 5} + \frac{4 \times 4}{5 \times 4} [/tex]
And you get
6/20 + 5/20 + 16/20 (now you can add them because they all have 20 as denominator) so = 27/20 = 1 7/20
A wallet contains 34 notes, all of which are either $5 or $10 notes. If it amounts to $235, how many $10 notes are there?
Answer:
For this question, you can use the simultaneous equation to solve this problem.
Equation 1 reads: x + y = 34. (There are 34 notes in total.)
Equation 2: 5x + 10y = 235 (The notes are worth a total of $235.)
To find x in terms of y, we can apply equation 1:
x = 34 - y
When we use this expression to replace x in equation 2, we obtain:
5(34 - y) + 10y = 235
By condensing and figuring out y, we get at:
y = 15
There are 15 $10 bills in the wallet as a result.
diego is buying a pumpkin that weighs 12.8 pounds. pumpkins cost $0.60 per pound. how much will diego pay for his pumpkin
As pumpkins cost $0.60 per pound Diego will pay $7.68 for his pumpkin.
To find out how much Diego will pay for his pumpkin, we need to multiply the weight of the pumpkin by the cost per pound:
Cost = weight × cost per pound
In this case, the weight is 12.8 pounds and the cost per pound is $0.60:
Cost = 12.8 pounds × $0.60/pound
Simplifying the expression, we get:
Cost = $7.68
Therefore, Diego will pay $7.68 for his pumpkin.
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The volume of a cone is 109.95 cubic inches and the height is 4.2 inches. What is the radius of the cone?
The calculated radius of the cone is 5 inches
What is the radius of the cone?From the question, we have the following parameters that can be used in our computation:
Volume = 109.95 cubic inches
Height = 4.2 inches.
The volume is calculated as
V = 1/3 * 3.14 * r^2h
So, we have
1/3 * 3.14 * r^2 * 4.2 = 109.95
So, we have
r^2 = 3 * 109.95/(4.2 * 3.14)
So, we have
r^2 = 25.01
Take the square roots
r = 5
Hence, the radius is 5 inches
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Write your answer as an integer or as a decimal rounded to the nearest tenth.
The measure of WY using trigonometric identities is 5.4405.
We have,
Using trigonometric identities,
tan 33 = YW/√70
Now,
√70 = 8.37
tan 33 = 0.65
Substituting,
0.65 = YW/8.37
YW = 0.65 x 8.37
YW = 5.4405
Thus,
The measure of WY is 5.4405.
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What is the answer to the question?
The solid that is produced rotating the triangle about the line m is given as follows:
A cylinder with height of 2 units.
What are the radius and the diameter of a cylinder?The cylinder has a circular base, hence we must start there, then we consider that;
The radius of a circle represents the distance between the center of the circle and a point on the circumference of the circle.The diameter of the circle is the distance between two points on the circumference of the circle that pass through the center. Hence, the diameter’s length is twice the radius length.Rotating the line, the features of the cylinder generated are given as follows:
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solve this equation
4(x-1)=2(6-2x)
Answer:
4(x-1)=2(6-2x)
4x-4=12-4x
4x+4xd=12+4
8x=16
x=2
Answer:
x=2
Step-by-step explanation:
Step 1: Distribute
To solve this problem, the first step is distributing the four and the 2.
[tex]4(x-1)=2(6-2x)\\\\4x-4=12-4x[/tex]
So this is our simplified problem.
Step 2: Solve for x
Step 2a: Add 4x to both sides:
(This is because we do not have two variables in the equation, making it easier to solve.
[tex]4x+4x-4=12-4x+4x\\\\8x-4=12+0\\\\8x-4=12[/tex]
Step 2b: Add 4 to both sides:
(We do this to leave the variable on one side and the constant on the other. )
[tex]8x-4+4=12+4\\\\8x+0=16\\\\8x=16[/tex]
Step 2c: Divide both sides by 8:
(The reason why we do this is to isolate the variable without any coefficient in front.)
[tex]\frac{8x}{8} =\frac{16}{8} \\\\x=2[/tex]
