A company sells cardboard that is eight and thee-fourths millimeters thick. Write an equation to solve for the number of sheets of cardboard, c, in a pile that is one hundred fifty-seven and one-half millimeters thick. What must be done to both sides to solve the equation?

Question

texaschic101 · Answer

8 3/4c = 157 1/2 -- turn to improper fractions
35/4c = 315/2 -- divide both sides by 35/4
c = (315/2) / (35/4)
c = 315/2 * 4/35
c = 630/35
c = 18

There are 18 sheets.

anonymous · Answer

thank you :) word problems like this confuse me

texaschic101 · Answer

you would have to divide both sides by 35/4 (which is the improper fraction form of 8 3/4)

texaschic101 · Answer

glad to help....word problems can be confusing sometimes