mason compares two plans for an online book club. which equation can be used to solve for the number of…
mason compares two plans for an online book club. which equation can be used to solve for the number of books, b, for which the cost of plan a equals plan b? plan a no membership fee $12 per book plan b $75 membership fee $3 per book 12b = 75b + 3 12b = 3b + 75 12 = 75 + 3b 12 + 3b = 75
Answer
Explanation:
Step1: Calculate cost of Plan A
Cost of Plan A is (12b) (since it's ($12) per book and (b) is number of books).
Step2: Calculate cost of Plan B
Cost of Plan B is (3b + 75) (($3) per book plus ($75) membership fee).
Step3: Set costs equal
Set (12b=3b + 75) (when costs are equal).
Answer:
(12b = 3b+75)