CPM Homework Help : CC1 Problem 8-90

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Home > CC1 > Chapter 8 > Lesson 8.3.1 > Problem 8-90

8-90.

Solve each of the following equations. Show your work.

Hint:

Undo the equation by performing the inverse operation to solve the equation for the given variables.

$5f=15$
Step (a):
Inverse operation:
$5f\div5=15\div5$
Answer (a):
$f=15\div5$
$f=3$

$\frac{3}{4}w=6$
Hint (b):
Multiply by the multiplicative inverse of three fourths.
$\frac{4}{3}$

$1.6y=9$
Hint (c):
See the help for part (a).

$\frac{p}{3}=81$
Answer (d):
$243$
$\quad \frac { p } { 3 } = 81$

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