How do you solve this problem. Please provide step by step details. Thanks!
Solve for B
V=1/3 Bh
V=20, h=4
(Note: I could not do fractions so 1/3 is a fraction)
Solve for h
A=1/2(B+b)h
A=49.5, B=17, b=16
here is how i did the second equation.
$\displaystyle 49.5={\frac {1}{2}}(17+16)h$
$\displaystyle (2)49.5=(17+16)h$ multiply through by $\displaystyle {\frac {2}{1}}$ to clear fraction.
$\displaystyle 99=(33)h$ multiply left side and sum numbers in brackets on right.
$\displaystyle {\frac {99}{33}}={\frac {33}{33}}h$ divide both sides by 33.
$\displaystyle 3=h$
hope that helps.