An online music club sells compact discs for $9 each plus $1.50 shipping and handling per order. Maria’s total bill was $82.50.
Using the following equation, how many compact discs did Maria purchase
1 answer:
Answer:
9
Step-by-step explanation:
The equation is
9x + 1.50 = 82.50
You must isolate the 9x , to do so you have to subtract 1.50 from both sides.
9x + 1.50 = 82.50
-1.50 -1.50
9x = 81
isolate the variable (x), to do so you have to divide both sides by 9
9x = 81
/9 /9
=
x = 9
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