A store is selling ribbon by the yard. Mike bought 8 yards of red ribbon. Each yard cost $3.50. Complete and solve the working equation that represents the amount, a , Mike paid for buying 8 yards of ribbon.

a/8=
a= $

3 answers

a/8 = 3.50

To solve for a, we multiply both sides of the equation by 8:
8 * a/8 = 8 * 3.50

This simplifies to:
a = 28

Therefore, Mike paid $28 for buying 8 yards of ribbon.
A store is having its year-end sale. A shirt now costs $7.98, which is half of its original price. Complete and solve the working equation that represents the original price, p , of the shirt.
p + 7.98
p= $
p + 7.98 = 2 * 7.98

To solve for p, we can simplify the equation:
p + 7.98 = 15.96

Subtracting 7.98 from both sides:
p = 7.98

Therefore, the original price of the shirt was $15.96.