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mario62 [17]
3 years ago
7

Proportions and equations solve

Mathematics
1 answer:
kirza4 [7]3 years ago
7 0
Y=9x because if you divided y by x all the numbers will  equal to 9 which is proportional
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I need help with 5 and 6
8_murik_8 [283]

Answer:

w = 6

RS = 13

Step-by-step explanation:

RS + ST = RT

(2w + 1) + (w - 1) = 18

3w = 18

; w = 6

Hence the value of RS = 2(6) + 1

; RS = 13

AC = AB + BC

56 = (x + 16) + (5x + 10)

56 = 6x + 26....then rearrange the equation to form...;

56 - 26 = 6x

30 = 6x...

where...; x = 5

AB = 5 + 16 and BC = 5(5) + 10

;AB = 21 ;BC = 35

7 0
3 years ago
What is the domain and range of y=4x+4
Mnenie [13.5K]
The domain is all real numbers
7 0
3 years ago
Read 2 more answers
Find the volume of a pyramid with a square base, where the perimeter of the base is 13.4 in and the height of the pyramid is 7.6
VashaNatasha [74]

Answer:

28.4in³

Step-by-step explanation:

Volume of the square based pyramid = L²H/3 where;

L is the length of a side of the square base

H is the height of the prism

Given

Perimeter of the base = 13.4 in

Height of the pyramid = 7.6in

First we need to get the length of the square base

Perimeter of a square = 4L

13.4 = 4L

L = 13.4/4

L = 3.35 in

Next is to find the required volume of the pyramid

V = L²H/3

V =  3.35²(7.6)/3

V = 85.291/3

V =  28.4 in³

Hence the volume of the pyramid to nearest tenth is 28.4in³

7 0
3 years ago
If 10% of my money is $15, then what is 40% of my money?
saul85 [17]

\begin{array}{ccll} \%&amount\\ \cline{1-2} 10&15\\ 40&x \end{array}\implies \cfrac{10}{40}=\cfrac{15}{x}\implies \cfrac{1}{4}=\cfrac{15}{x}\implies x=60

4 0
2 years ago
Read 2 more answers
Write an equation in slope-intercept form for the line passing through the pair of points.
damaskus [11]

Answer:

<h2>A) y= -x + 1</h2>

Step-by-step explanation:

The slope-intercept form of an equation of a line<em>:</em>

y=mx+b

<em>m</em><em> - slope</em>

<em>b</em><em> - y-intercept</em>

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

==========================================

We have the points (-1, 2) and (4, -3).

Calculate the slope:

m=\dfrac{-3-2}{4-(-1)}=\dfrac{-5}{5}=-1

Put the value of the slope an the coordinates of the point 9-1, 2) to the equation of a line:

2=(-1)(-1)+b

2=1+b              <em>subtract 1 from both sides</em>

1=b\to b=1

Finally:

y=-x+1

7 0
3 years ago
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