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?

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?

anonymous · Answer

b = 2A over 9 + 35

 b = 2 multiplied by A over 9 - 35

 b = 2 multiplied by A plus 35, all over 9

 b = 2 multiplied by A minus 35, all over 9

mathmale · Answer

@sectorz423 :  Mind going back to double-check that you've copied down this problem correctly?

The area of a trapezoid with height h and two (different) bases is 
$$A=\frac{ b _{1}+b _{2} }{ 2 }*h$$

If one base is 35 and the height is 9, then the area A is$$A=\frac{ 35+b _{2} }{ 2 }*9$$

mathmale · Answer

Solve that for b-sub-2.

anonymous · Answer

Oh no they are asking for the formula to find the other b

anonymous · Answer

Imma go with a