Answer:
b
Step-by-step explanation:
You have to solve all the equations to find which one equals 8
For a, you can take away the zero which leaves you with 72/9 which is 8. Then you add the zero back to the answer which gives you 80.
For b, you can cancel out the zeroes from 720 and 90 which gives you 72/9 again. That leaves you with 8.
For c, take away the zeroes leaving you with 72/9. Then you have 800 when you add the zeroes back.
For d, you can cancel out one of the zeroes which will give you 720/9. Then you take away the zero and now you have 72/9 again. Then add the zero to the answer which will give you 80.
Because b is the only equation that equals 8, it must be the answer.
Help
Evaluate.
(2a−7)÷b when a=8 and b=3
Enter your answer in the box.
Answer:
3
Step-by-step explanation:
So you have to take the equation, (2a - 7) ÷ b, and you must plug in the numbers for the variables.
(2a - 7) ÷ b
(2(8) - 7) ÷ 3
(16 - 7) ÷ 3
(9) ÷ 3
= 3
Hope this helps!!! :)
Data set 1: Has a mean of 84 and a MAD of 6. Data set 2 Has a mean of 78 and a MAD of 8 I need to find out what the means to Mean Absolute Deviation (MAD) ratio is.
My teacher keeps telling me that it is 0.75, but I can't seem to get the right formula to it to answer right. can anyone help?
Answer:
0.75 or 6/8
Step-by-step explanation:
This is probably a late answer but I thought I would go ahead and respond.
When you have two data sets with the same variance, the ratio of the means to MAD is a way to test for the pooled variance of the two data sets
Given Data Set 1 with mean M1 and mean absolute deviation with MAD1 and another data set 2 with mean M2 and MAD2 the means to MAD ratio is given by the ratio of the absolute difference in means to the largest of the MADs
Here M1 = 84 and M2 = 78 so the absolute difference is |84-78| = 6
The larger MAD is MAD2 = 8
So the ratio is 6/8 = 3/4 = 0.75
Brainliest to the correct answer! >.>
The temperature of a solution increases by 1.2∘F each minute for 3 minutes. The solution is then placed in an ice bath, and its temperature decreases by 12∘F over the next minute. What is the current temperature?
Enter your answer as a decimal in the box.
Answer:
-8.4
Step-by-step explanation:
multiply 1.2 x 3 then subtract the answer by 12
PLEASE HELP ME
Evaluate.
a−2b when a=−2 and b=4
Enter your answer in the box.
The graph shows the proportional relationship between the number of gems collected and the number of levels that have been completed in a video game.
Graph with x axis labeled game levels and y axis labeled gems collected. A line begins at 0 comma 0 and goes through points 6 comma 450 and 8 comma 600.
p equals 2 over 150
p = 0.0133
p = 75
p = 150
Answer:
the answer is 150 I'm pretty sure
What are the domain and range of the function f of x is equal to the quantity x squared plus 6x plus 8 end quantity divided by the quantity x plus 4 end quantity?
Answer:
The domain is all values of
x
that make the expression defined.
Interval Notation:
[
0
,
∞
)
Set-Builder Notation:
{
x
|
x
≥
0
}
The range is the set of all valid
y
values. Use the graph to find the range.
Interval Notation:
[
0
,
∞
)
Set-Builder Notation:
{
y
|
y
≥
0
}
Determine the domain and range.
Domain:
[
0
,
∞
)
,
{
x
|
x
≥
0
}
Range:
[
0
,
∞
)
,
{
y
|
y
≥
0
}
5 1/4 - (-3.55) + (-3 2/5)
Answer:
5.4
Step-by-step explanation:
Conversion a mixed number 3 2/
5
to a improper fraction: 3 2/5 = 3 2/
5
= 3 · 5 + 2/
5
= 15 + 2/
5
= 17/
5
To find a new numerator:
a) Multiply the whole number 3 by the denominator 5. Whole number 3 equally 3 * 5/
5
= 15/
5
b) Add the answer from previous step 15 to the numerator 2. New numerator is 15 + 2 = 17
c) Write a previous answer (new numerator 17) over the denominator 5.
Three and two fifths is seventeen fifths
Conversion a mixed number 5 1/
4
to a improper fraction: 5 1/4 = 5 1/
4
= 5 · 4 + 1/
4
= 20 + 1/
4
= 21/
4
To find a new numerator:
a) Multiply the whole number 5 by the denominator 4. Whole number 5 equally 5 * 4/
4
= 20/
4
b) Add the answer from previous step 20 to the numerator 1. New numerator is 20 + 1 = 21
c) Write a previous answer (new numerator 21) over the denominator 4.
Five and one quarter is twenty-one quarters
Add: 17/
5
+ 21/
4
= 17 · 4/
5 · 4
+ 21 · 5/
4 · 5
= 68/
20
+ 105/
20
= 68 + 105/
20
= 173/
20
It is suitable to adjust both fractions to a common (equal, identical) denominator for adding, subtracting, and comparing fractions. The common denominator you can calculate as the least common multiple of both denominators - LCM(5, 4) = 20. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 5 × 4 = 20. In the following intermediate step, it cannot further simplify the fraction result by canceling.
In other words - seventeen fifths plus twenty-one quarters is one hundred seventy-three twentieths.
Answer:
Decimal: 5.4
Fraction: 5 2/5 or 27/5
Step-by-step explanation:
Decimal:
5 1/4 = 5.25
-3 2/5 = -3.4
5.25 + 3.55 - 3.4 (Simplified)
= 5.4
Fraction:
-3.55 = -71/20 or -3 11/20
5 1/4 + 3 11/20 - 3 2/5 (Simplified)
= 5 2/5
Shawn invites some friends over for pizza and a movie. He makes a small cheese pizza for himself and a large pepperoni pizza for his friends. Shawn uses 0.75 pounds of dough for the cheese pizza and twice as much dough for the pepperoni pizza. How much dough does Shawn use in all?
Answer:
The amount of dough used for the pepperoni will be twice that of the cheese or 2 times the amount of dough.
Step-by-step explanation:
PLSSS HELP
choices for 1
- g(x) = -x-4
- g(x) = x-5
- g(x) = -x-5
- g(x) = -x-4
choices for 2
- h(x) = -0.5x + 2
- h(x) = -0.5x + 3
- h(x) = -2x + 3
- h(x) = -2x + 2
For number 1, the answer should be -g(x) = -x - 4
Number 2 should be h(x) = -0.5x + 3
I suggest using desmos graphing calculator for future help. Hope this helps
Pearl's father was 28 when Pearl was 6 years old. Pearl's father is now twice as old as Pearl. How old is Pearl?
Answer:
22
Step-by-step explanation:
the age difference between 28-6 is 22 years
And the only time you are double the age of something the younger one is the age of the age difference so Pearl is 22 and her father is 44
Hopes this helps please mark brainliest
Answer: Pearl is 22
Step-by-step explanation:
The first number is Pearl's age and the second is her father's. 6 and 28, 7 and 29, 8 and 30, 9 and 31, 10 and 32, 11 and 33, 12 and 34, 13 and 35, 14 and 36, 15 and 37, 16 and 38, 17 and 39, 18 and 40, 19 and 41, 20 and 42, 21 and 43, 22 and 44. 22×2=44 Hope this helps.
Angie bikes for 20 minutes burning 150 calories. How many minutes will it take to burn 525 calories?
Answer:
70 minutes OR 1 hour and 10 minutes (it's the same thing)
Step-by-step explanation:
So this can be modeled by the equation 20/150=x/525
so solving for x, you have to say whats the most times that 150 will go into 525 without going over
the answer is 3
so 150x3=450 and 525-450=75
75 is one half of 150 so it would be 3.5
multiply 20 by 3.5 and you get 70 or 1 hour and 10 minutes since an hour is 60 minutes
Don't forget to give brainliest :)
Marissa baked 371 desserts in 9 1/3 months. Find marissa’s desserts making rate in desserts per month
Answer:
39 3/4
Step-by-step explanation:
371 divided by 9 1/3 is 39.75 so converted to a fraction its 39 3/4
After buying dinner, Julia had 34$ left over. She spent 3$ on cranberry sauce, 12$ on stuffing, and 31$ on the turkey. How much money, m, did Julia start with?
estimate 42.8 + 31.2
−5=x11 need help asap
Answer: X= -1.15755791. . .
Consider the equation 5+x=n
5
+
x
=
n
. What must be true about any value of x
x
if n
n
is a negative number? Explain your answer. Include an example with numbers to support your explanation.
Answer:
x < - 5Step-by-step explanation:
Given equation:
5 + x = nIf n is negative then we get:
n < 0 or5 + x < 0x < - 5If n is negative then x is less than - 5.
Example:
x = - 6 ⇒ 5 + (-6) = 5 - 6 = - 1 ⇒ -1 < 0Answer:
x < -5
Step-by-step explanation:
Now the value of x is,
→ 5 + x = n
→ x = n - 5
The value of n when negative,
→ n < 0 ---- {n = 0}
When n is a negative number,
→ x < 0 - 5
→ [ x < -5 ]
Hence, the answer is x < -5.
Enrollment in a business seminar increased from 78 people to 90 people. What was the percent of the increase? Round to the nearest tenth of a percent.
Please help me. I need the answer if its diameter, radius, or circumference. After i pick one it asks the calculations. Thanks!
Hi! I need help with transversals of parallel lines solve the x if someone can help it would be great! Thank you!
Step-1: Find a property that shows the relation between the two angles
Given Information:
Line IJ and Line KL are parallel lines.∠KNH = 30x - 15∠GMJ = 25xIf Line IJ and Line KL are parallel lines (cannot intersect), both angles are outside the parallel lines, but each angle is on the opposite side of the transversal, the angles verify a property called the external angle property. The external angle property is called "external" because both angles are outside the transversal (a line that intersects the parallel line).
Step-2: Write an equation that describes the two angles
Since ∠KNH and ∠GMJ support the external angle property, we can assume that the two angles are equivalent. Therefore, we can write the following equation that can describe the relation between the angles:
⇒ ∠KNH = ∠GMJ ⇒ 30x - 15 = 25x
Step-3: Solve for x (common variable between two angles)
To find the measure of ∠KNH, we must find the value of x. This can be done by solving for the x-variable in the equation created from above knowledge. Simplify isolate all the variables on one side of the equation, simplify if needed, and isolate the coefficient if needed. We can isolate the variables on one side by adding or subtracting both sides of the equation. Then, we can cancel out the coefficient (a number being multiplied by the variable). from the variable by multiplying/dividing both sides of the equation.
⇒ 30x - 15 = 25x⇒ 30x - 15 - 30x = 25x - 30x (Isolating the variables on one side)⇒ -15 = 25x - 30x = -5x⇒ -15 = -5x ⇒ x = -15/-5 = 3Step-4: Substitute the value of x and determine the measure of ∠KNH
Now, we can substitute the value of x into the angle measure. We have the following angle measure of ∠KNH ⇒ (30x - 15)°. So, we have:
⇒ 30x - 15 = 30(3) - 15 = 75°Therefore, the measure of ∠KNH is 75°.
Learn more about transversals: https://brainly.com/question/9855060
What is the measure of the exterior angle?
Check the picture below.
GUYS HELP I HAVE A UNIT TEST ON RATIOS AND PROPORTIONS TOMORROW AND WE ARE ALLOW ONE NOTECARD WHAT SHOULD I WRITE DOWN I OFFER 75 POINTS AND BRAINLIEST
Answer:
look down
Step-by-step explanation:
well u should know that.....
1. A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0. A proportion is an equation in which two ratios are set equal to each other
2. A unit rate describes how many units of the first type of quantity corresponds to one unit of the second type of quantity. A proportion is an equation that states that two ratios or rates are equivalent.
3. As defined in the lesson on Unit Rate and Proportionality, the unit rate is the rate of change in a relationship where the rate is per 1.
4. A proportion is an equation in which two ratios are set equal to each other. For example, if there is 1 boy and 3 girls you could write the ratio as: 1 : 3 (for every one boy there are 3 girls)
how to divide 3 ÷ 0.4 =
Answer:
7.5
Step-by-step explanation:
Could someone help me answer all four questions? I really need it
Can you pls help me???
Answer: Replacing with the equivalences: ∠DOB has a measure of 3.5y, the measure of ∠AOD is y, and ∠AOC + ∠COB measure 180°, we get: 3.5y = y + 180°. 3.5y - y = 180°. 2.5y = …
Step-by-step explanation:
5 Michael has $16.25 in the bank. He needs $108 to buy a video game. He finds he can
save $1.75 a week from his allowance. How many weeks must he save in order to have
enough to buy the game?
Answer:
53 weeks (rounded)
Step-by-step explanation:
First, subtract 16.25 from 108 (108 - 16.25), resulting in 91.75
Next, you divide. 91.75/1.75
You would get 52.42... but you would have to add a week to actually get the game.
Which circle represents 30% in blue?
Answer:
The second image. First image is 35%, second is 30%, third is 25% and last one is 50%
A lifeguard earns $7.50 per hour.
Represent the lifeguard's rate of income by completing the table.
Choose the correct answer for each box. Not all answers will be used.
Question on photo, Ty!!
What is the equation if the line shown in this graph?
Answer: y = 1
The line has no slope, just a y-intercept which is +1
Look at the number line below. A vertical number line labeled from bottom to top from negative 2 to positive 1 with tick marks every 1-sixth unit. There are 4 points marked. The point 1 tick below negative 1 is labeled D. The point 1 tick below 0 is labeled C. The point 1 tick above 0 is labeled B. The point 1 tick below 1 is labeled A. A vertical number line labeled from bottom to top from negative 2 to positive 1 with tick marks every 1-sixth unit. There are 4 points marked. The point 1 tick below negative 1 is labeled D. The point 1 tick below 0 is labeled C. The point 1 tick above 0 is labeled B. The point 1 tick below 1 is labeled A. Which point is located at -\dfrac{1}{6}− 6 1 minus, start fraction, 1, divided by, 6, end fraction?
Answer: 0.6666
Step-by-step explanation: its hard to explain but yk try to figure it out.
