Answer:
x = 5
Step-by-step explanation:
(9 - x) × 10 = 40
90 - 10x = 40
90 - 40 = 10x
50/10 = 10x/10
x = 5
Step-by-step explanation:
A number is subtracted from 9. We can call this number "x."
9-x is our first part. Now the problem is saying that the result is multiplied by 10.
10(9-x)
Now the problem is saying that this expressions is equal to 40. Now we have constructed the equation 10(9-x) = 40. Now let's solve!
10(9-x) = 40
divide each side by 10.
9-x=4
subtract 9 from both sides
-x=-5
multiply each side by -1
x=5
The number is 5
Find a point-slope1/5 form for the line with slope
and passing through the point (-3,-8).
please help me asap!!
Answer:
y+9=1/5(x+3)
Step-by-step explanation:
Point slope formula: y-y1=m(x-x1)
slope=m
m=1/5
-3=x1 -9=y1
y-(-9) =1/5(x-(-3))
simplify...
y+9=1/5(x+3)
The coordinate grid shows the location of three points.
PLS HELP MEEE
Step-by-step explanation:
solution
here
hope u get it
Answer:
5 units.
Between A and C there are 5 squares until it reaches C meaning that the distance between points A and C is five units.
If these unit squares on the grid equalled a different number each (for example, 2) then the distance from the said points would be 10 and you can find this by multiplying 5 x 2. If it was any other number then you would do the same (5x).
We can also find the answer to this when only given the points.
Since A = -2, -3 and C = 3, -3 we can already see in this way that their value for y is the same. Since A's value for x is -2 then we can add until we get to 0 and continue adding until we reach 3 (aka C's value for x), this would equal 5 units.
(My condolences for the other answer as I read it incorrectly)
us
This probability distribution shows the
typical grade distribution for a Geometry
course with 35 students.
Grade
А
B
C D F
Frequency
5
10
15
3
2
Find the probability that a student earns a
grade of A, B, or C.
p = [?]
Enter a decimal rounded to the nearest hundredth.
Answer:
0.714
Step-by-step explanation:
P(A or B or C) = P(A) + P(B) + P(C)
=(5/35)+(10/35)+(15/35)
=25/35
=0.714
Someone please Help and explain
Answer:
71
Step-by-step explanation:
Well first I split it in two different parts. Then I found the area of each one and then added the together!
How I found the area or each part was multiplying the length by the width so 8 times 7 is 56. Then 3 times five is 15, after you add those together you get 71!
Hope this helps!
6. A farmer has a rectangular field that measures 100 feet by 150 feet. He plans to increase the area of the field by
20%. He will do this by increasing the length and width by the same amount, x. Which equation represents the
area of the new field?
A. (100 + 2x)(150 + x) = 18,000
B. 2(100+ x) + 2(150 + x) = 15,000
C. (100+ x)(150 + x) = 18,000
D. (100 + x)(150 + x) = 15,000
Answer:
C
Step-by-step explanation:
First, we find the area of the field with the original measurements.
100 x 150 = 15,000
That number will be increased by 20%, so multiply it by 1.2
15,000 x 1.2 = 18,000
This means the equation will have to equal 18,000
This eliminates choices B and C
Both the length and width are increased by the same amount, making A not the right choice since there is a 2x. This 2x means that one of the sides is being doubled increased than the other side, so that would make it to where both sides are not increased equally.
This leaves us with choice C where it equals 18,000 and both sides are increased by an equal amount.
The circumference of a circle is 100.48 millimeters. What is the circle's radius?
Answer:
r=15.99
Step-by-step explanation:
r=C
2π=100.48
2·π≈15.99189
Answer:
15.99 or 16
Step-by-step explanation:
Which of the following is a normative statement? Group of answer choices Popcorn and candy are sold in movie theaters. The price of candy bars is $1.25 each. You should eat less candy. Candy bars are more expensive than newspapers.
Answer:
(Quit)
Step-by-step explanation:
Find the equation of the line L which is perpendicular to the line 3x - 2y + 6 = 0 and passes through the point (3, -5)
Answer:
[tex]\displaystyle y = -\frac{2}{3}\, x - 3[/tex].
Step-by-step explanation:
Rewrite the equation [tex]3\, x - 2\, y + 6 = 0[/tex] in the slope-intercept form [tex]y = m_{1} \, x + b[/tex] to find the slope of this given line:
[tex]\displaystyle y = \frac{3}{2}\, x + 3[/tex].
Thus, the slope of this given line is [tex]m_{1} = (3/2)[/tex].
Let [tex]m_{1}[/tex] and [tex]m_{2}[/tex] denote the slope of the given line and the slope of line [tex]L[/tex], respectively. Two lines in a plane are perpendicular to one another if and only if the product of their slopes is [tex](-1)[/tex]. Therefore, for these two lines to be perpendicular to one another, [tex]m_{1} \, m_{2} = (-1)[/tex].
Since [tex]m_{1} = (3/2)[/tex] according to the equation of the given line, the slope of line [tex]L[/tex] would be:
[tex]\begin{aligned} m_{2} &= \frac{(-1)}{m_{1}} \\ &= \frac{(-1)}{(3/2)} \\ &= \frac{(-2)}{3}\end{aligned}[/tex].
If a line in a plane has slope [tex]m[/tex] and goes through the point [tex](x_{0},\, y_{0})[/tex], the slope-point equation of that line would be [tex](y - y_{0}) = m\, (x - x_{0})[/tex].
Since the line [tex]L[/tex] goes through [tex](3,\, -5)[/tex], the equation of this line in slope-point form would be:
[tex]\displaystyle y - (-5) = \frac{(-2)}{3}\, (x - 3)[/tex].
Rearrange to find the equation of line [tex]L[/tex] in slope-intercept form:
[tex]\displaystyle y = -\frac{2}{3}\, x - 3[/tex].
keeping in mind that perpendicular lines have negative reciprocal slopes, let's check for the slope of the equation above
[tex]3x-2y+6=0\implies 3x-2y=-6\implies -2y=-3x-6 \implies y=\cfrac{-3x-6}{-2} \\\\\\ y=\cfrac{-3x}{-2}-\cfrac{6}{-2}\implies y=\stackrel{\stackrel{\stackrel{m}{\downarrow }}{}}{\cfrac{3}{2}} x+3\qquad \impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}[/tex]
therefore then
[tex]\stackrel{\textit{perpendicular lines have \underline{negative reciprocal} slopes}} {\stackrel{slope}{\cfrac{3}{2}} ~\hfill \stackrel{reciprocal}{\cfrac{2}{3}} ~\hfill \stackrel{negative~reciprocal}{-\cfrac{2}{3}}}[/tex]
so we're really looking for the equation of a line whose slope is -2/3 and passes through (3 , -5)
[tex](\stackrel{x_1}{3}~,~\stackrel{y_1}{-5})\qquad \qquad \stackrel{slope}{m}\implies -\cfrac{2}{3} \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-5)}=\stackrel{m}{-\cfrac{2}{3}}(x-\stackrel{x_1}{3}) \\\\\\ y+5=-\cfrac{2}{3}x+2\implies y=-\cfrac{2}{3}x-3[/tex]
Which graph represents a bike traveling at a constant rate of
12 miles per hour?
30
40
27
36
24
32
21
42
28
42
18
36
24
36
地圖
15
30
20
30
12
24
16
24
9
18
12
18
6
12
8
12
3
6
4
6
1
1
Hours
2
Hours
12
Hours
Hours
Answer:
correct ans is option/graph Dbecoz 36/3 = 12
Answer:
dude get rid of those like 100 numbers but any way
it would be a graph that crosses the y value of 12 at the same time it crosses the x value of 1
a no its below 12 at 1
b looks a little high
c defently to high
d just right
answer is d
Hope This Helps!!!
There are (108)2. 10° candies in a store. What is the total number of candies in the store?
O a
Ob
1010
OC
1016
od
1017
Need help :)
Explanation:
The [tex](10^8)^2[/tex] portion becomes [tex]10^{16}[/tex] because we multiply the exponents.
The [tex]10^0[/tex] part is equal to 1. Raising any nonzero value to an exponent of 0 gets us 1 every time. The rule is [tex]x^0 = 1 \ \text{ where } x \ne 0[/tex]. Then that "1" goes away because 1 times anything is that number.
So overall, we end up with [tex]10^{16}[/tex]
When expanding this number out, it's going to have 16 zeros. So this number is very large.
[tex]10^{16} = \text{1 followed by 16 zeros} = \text{10 quadrillion}[/tex]
What is the circumference of a circle that has a radius of 55cm?
Answer:
345.575191895
Step-by-step explanation:
To solve you use the equation pie(D)
Solve the absolute value equation and enter the solution in set notation.
|4y−7|−4=0
Answer:
see the attached graphic
Step-by-step explanation:
I'm not sure how you write set notation for your country (I am in the UK) so please excuse if this is not exactly the correct notation. But here is the method:
Find the area if the figure, pls write calculations
Answer:
36 cm²Step-by-step explanation:
(2.4 * 12) + [2.4 * (18-12)] : 2 =
28.8 + [2.4 * 6] : 2 =
28.8 + 14.4 : 2 =
28.8 + 7.2
36cm²
if t <10,15>(pqrs) = p' q' r' s' , what translation maps p' q' r' s' onto pqrs?
The translation that maps pqrs to p'q'r's is 10 units left, and 15 units up.
What is translationTranslation involves moving a point, line or shape vertically or horizontally in the coordinate plane
The translation ruleThe translation rule is given as:
[tex]t<10,15>(pqrs) = p'q'r's[/tex]
The above means that, shape pqrs is translated 10 units left, and 15 units up to form p'q'r's
Read more about translation at:
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find the greatest common factor for the group of terms. help !! will give brainiest
Answer:
3y -5
Step-by-step explanation:
Factors of the two terms are ...
a and (3y -5)4 and (3y -5)The only common factor is (3y -5). That is the greatest common factor.
__
When that is factored out of the sum, you have ...
(3y -5)(a +4)
Find the slope of the line that contains the following points.
A(5, 6), B(10,8)
5/2
2/5
14/15
Van purchased a DVD player on sale. The original selling price was $154.30. The sale price was $129.15. What is the first step in finding the percent markdown? Find the percent markdown.
Answer:
16.3% (rounded)
Step-by-step explanation:
The first step in finding the percent markdown is to subtract the sale price from the original price.
154.30 - 129.15 = 25.15
Now divide the difference by the original price.
25.15/154.30 = 0.16299
Change to a percent by multiplying by 100.
16.299
If you need to round, it is 16.3%
5+(−4) What is answwer
Answer:
1
Step-by-step explanation:
the way to solve is just too look at the bigger picture. -4+5 is another way to write it. This would simply to 5-4, which is 1.
ℍ
Answer:
1
Step-by-step explanation:
In the equation below, n and a are positive numbers. n+13=a Which of the following is true?
Answer:
inf > a > 13 || inf > n > 0
Step-by-step explanation:
we already know that n is positive so that means that a has to have a range starting 13 higher than n.
Answer the following questions. Be sure to justify your responses
1. Marcus is training for a bike race and has biked 25 miles this week. He needs to bike at least
80 miles this week to complete his training. How many miles should Marcus bike on each of the 5
remaining days this week?
Answer:
11 miles per day
Step-by-step explanation:
To complete 80 miles, Marcus needs to bike an additional ...
80 -25 = 55 . . . miles
__
If he divides that evenly among the 5 remaining days, he needs to bike ...
(55 mi)/(5 day) = 11 mi/day
Marcus should bike 11 miles on each of the 5 remaining days.
Help me with answers b and d (WILL GIVE BRAINLY)
Answer:
Step-by-step explanation:
For a, (6 times 2)
For b, (40-15)
For c, (15 divided by 5)
For d, I am not sure
I think there might be a mistake if I am right
If I am right it is (15 divided by 5 plus 3) for d
Can someone help me asp I will mark u brilliant
Answer:
5
9
Step-by-step explanation:
To find solve this problem, we must first total up 66 + 25 + 33 + 36 + 24 + 16.
The answer to that is 200.
Out of 200 customers, 25 customers prefer a minivan.
25/200 is 1/8.
We can create a ratio.
25:200
Divide by 25 on both sides.
1:8
Multiply by 5 on both sides.
5:40
Out of 40 customers, 5 prefer a minivan.
Out of 200 customers, 36 prefer a SUV.
We can create a ratio
200 : 36
Divide by 4 on both sides
50 : 9
Out of 50 customers, 9 prefer a SUV.
Hope this helps :)
Have a nice day!
Answer:
5
9
Step-by-step explanation:
66 + 25 + 33 + 36 + 24 + 16 = 200
25/200 = 0.125 = 12.5%
36/200 = 0.18 = 18%
Y = P%*X
Y = 0.125*40
5 = 0.125*40
Y = P%*X
Y = 0.18*50
0 = 0.18*50
Write this expression so that its denominator, if any, is a positive integer.
2/(3+sqrt(7))
Answer:
The Answer is 3 - sqrt7
Step-by-step explanation:
2/3 + sqrt7 the starting equation
You multiply it by the conjugate which is 3 - sqrt7
= 2(3 - sqrt7) / (3 + sqrt7) (3 - sqrt7) the equation after you multiply by 3 - sqrt7
(3 + sqrt7) (3 - sqrt7) = 2
= 2(3 - sqrt7) / 2 the equation after you simplify (3 + sqrt7) (3 - sqrt7)
Divide out the 2's
= 3 - sqrt7/1 the equation after you divide out the 2's
= 3 - sqrt7 is THE ANSWER
expression for 2/(3 + √7) with denominator 1 as positive integer
= (3 - √7)
What is expression?Expressions in math are mathematical statements that have a minimum of two terms containing numbers or variables, or both, connected by an operator in between. The mathematical operators can be of addition, subtraction, multiplication, or division.
For example, x + y is an expression, where x and y are terms having an addition operator in between.
Given expression
2/(3 + √7)
Multiplying with conjugate of denominator in both numerator and denominator
= 2 (3 - √7) / (3 + √7)((3 - √7))
= 2 (3 - √7) / 9 - 7
= (3 - √7)
Hence, (3 - √7) is the expression for 2/(3 + √7) with denominator 1 .
Learn more about expression here:
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Is the following a reflection,
rotation or translation?
Write the equation for the quadratic given 3 points. The solution should be in standard form.
(-1,7) (0,3) (1,9)
Answer:
-0.969
Step-by-step explanation:
-[1.7 x 0.3 x 1.9]
and
-[0.51 x 1.9]
Answer:
y=x^2+3x-12
Step-by-step explanation:
I looked it up
18) Write the explicit And recursive formulas for the sequence 10, 15, 22.5, 33.75... Then, find the 24" term
of the sequence.
Recursive:
Explicit
24th Term:
Answer:
See belowStep-by-step explanation:
Given sequence:
10, 15, 22.5, 33.75...This is a GP as subsequent terms increase by 1.5 times.
The first term is:
a₁ = 10Common ratio is:
r = 1.5The recursive formula:
a₁ = 10, aₙ = 1.5*aₙ₋₁The explicit formula:
aₙ = a₁*rⁿ⁻¹ ⇒ aₙ = 10*1.5ⁿ⁻¹The 24th term is:
a₂₄ = 10*1.5²³Which quadrilaterals always have congruent diagonals? Select all that apply.
Answer:
See below.
Step-by-step explanation:
"Rectangles and squares also always have congruent diagonals, but an isosceles trapezoid is the most general term for all the possibilities, since rectangles and squares are isosceles trapezoids in addition to having their own unique properties."
-hope it helps
What is the role of a conservator?
A. A conservator appoints a person to manage an inheritance.
B. A conservator sets up a trust for an elderly person.
c. A conservator advises people what to do when writing a will
D. A conservator manages an inheritance for someone unable to do 50.
Answer:
D a conservator manages an inheritance for someone unable to do so
Step-by-step explanation:
Answer:
D a conservator manages an inheritance for someone unable to do so
Step-by-step explanation:
Consider the scatter plot.
What type of association does it show?
Drag a word or phrase into the box to correctly complete the sentence.
The scatter plot shows Response area association.
A coordinate grid titled scatter plot with x-axis labeled Variable X in increments of one from zero to ten and the y-axis labeled Variable Y in increments of one from zero to ten. The grid contains the following points nine, one, eight, five, five, six, seven, two, six, two, eight, three, four, three, three, four, one, seven, two, eight, three, seven, two, three, and one, four.
Based on the information given, It should be noted that when there is no pattern, the association is zero.
Scatter plot.Your information is incomplete as the diagram isn't given. Therefore, an overview will be given. A scatter plot refers to a type of plot that uses Cartersian coordinates in order to display values for the variables that are in a data. A scatter plot is also known as a scatter chart or graph.
In a case where the variables increase and decrease together, then the association is positive. When one variable increases and the other reduces, the association is negative.
In conclusion, when there is no pattern, the association is zero.
Learn more about scatter plots on:
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Answer: The answer is a negative
Step-by-step explanation:
You have a rectangular sand box whose length is 4 more than its width. If the width is
12 feet, what is the perimeter of the sandbox?
O 192 ft
O 56 ft
a
O 28 ft
O It is not possible to find the Perimeter with the given information
Answer:
(b) 56 ft
Step-by-step explanation:
The length is 4 more feet than the width of 12 feet, so is 12+4 = 16 feet.
The perimeter of a rectangle is twice the sum of length and width:
P = 2(L +W)
P = 2(16 ft +12 ft) = 2(28 ft)
P = 56 ft
The perimeter of the sandbox is 56 feet.
