3 years ago

Need this turned in by tonight. Solving for x. My brain is fried, I have been doing math for the last 4 hour.Help!!!!!

Mathematics

1 answer:

inysia [295]3 years ago

3 0

Answer:

18. x = 24.5
19. x = 4
21. x = 10

Step-by-step explanation:

Corresponding sides have same ratio

Q18

7/6 = x / (27- 6)
6x = 7*21
x = 147/6
x = 24.5

Q19

(x + 5)/15 = (5x + 1)/35
(x + 5)/3 = (5x + 1)/7
7(x + 5) = 3(5x + 1)
7x + 35 = 15x + 3
15x - 7x = 35 - 3
8x = 32
x = 4

Q21

(x + 6)/24 = (2x - 2)/27
(x + 6)/8 = (2x - 2)/9
8(2x - 2) = 9(x + 6)
16x - 16 = 9x + 54
16x - 9x = 54 + 16
7x = 70
x = 10

You might be interested in

Use the graph or table to write a linear function that relates y to x.

fredd [130]

Answer:

x+2y=0

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

A.(x, y) (x -1, y + 4)

attashe74 [19]

The answer is D i believe

8 0

2 years ago

Read 2 more answers

#5 need help asap will give brainly

DerKrebs [107]

This might help

total surface area Stot = 42.5 ft2

lateral surface area Slat = 30 ft2

top surface area Stop = 6.25 ft2

bottom surface area Sbot = 6.25 ft2

but im thinking they would need 113.7 ft of rapping paper i many be totally wrong tho

4 0

3 years ago

Read 2 more answers

Is a rectangular prism has a length width and height of 3/8cm, 5/8cm and 7/8 in a meter respectively then the volume of the pris

myrzilka [38]

The volume of a rectangular prism is given by the multiplication of its three dimensions: if $w, h, l$ are the width, height and length of the prism, the volume is

$V = w\cdot h\cdot l$

So, in your case, you have

$V = \dfrac{3}{8} \cdot \dfrac{5}{8} \cdot \dfrac{7}{8} = \dfrac{3\cdot 5 \cdot 7}{8\cdot 8 \cdot 8} = \dfrac{105}{512}$

4 0

3 years ago

Y = 7x - 15<br> y = 4x - 12

elena-14-01-66 [18.8K]

Answer:

Step-by-step explanation:

7x - 15 = 4x - 12

3x - 15 = -12

3x = 3

x = 1

y = 7(1) - 15

y = 7 - 15

y = -8

(1, -8)

3 0

3 years ago