The volume V of a rectangular box is given by the formula V = lwh where l is length, w width, and h height. What is the height of a rectangular box with volume 56 cm3, length 4 cm, and width 2 cm?
Answer
Substitute 56 for V, 4 for l, and 2 for w. Find the equation 56 = (4)(2)h, and solve to get 7 = h. Yep. That should be big enough to fit your little sister.
, which simplifies to y = 3 – 2x.