Question

The equation below shows the area of a trapezoid, A, with a height of 9 cm, and one base 35 cm.

A = 9 over 2 (b + 35)

Which of the following formulas correctly solves for the other base, b?

Answer 1

Yes

Answer 2

to solve for a variable, think about what's being done to the variable, and do the opposite. however, you must also keep order of operations in mind.

A = (9/2)(b + 35)

you can start by multiplying both sides by (2/9) which will cancel out the 9/2 on the right side. from there, you'll have b + 25 on the right side, so you can subtract 25 from both sides. lmk what you get.