5(3x + 12) = –15
show your work

x=-5

Step-by-step explanation:

(5)(3x)+(5)(12)=−15

15x+60=−15

Subtract 60 from both sides.

15x=−75

Divide both sides by 15

x=-5

answer: what equations are there

step-by-step explanation:

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6