Question

The equation p= 2.5m + 35 represents the price p of a bracelet, where m is the cost of the materials. The price of a bracelet is $115. What is the price of the materials?

Answer 1

Explanation:

p=2.5m+35

115=2.5m+35

2.5m+35=115

-35 -35

----------------------

2.5m=80

2.5m/2.5=80/2.5

m=$32

Answer 2

p= 2.5m + 35 (replace p with 115)
115= 2.5m + 35 (subract 35 from each side)
115 - 35 = 2.5m
80 = 2.5m (divide 2.5 from each side)
80/2.5= 2.5m/2.5
32 = m

The price of the materials is $32