(a)
To Write: An equation that gives the total cost as a function of the number of people.
(a)
Answer to Problem 9CYU
Explanation of Solution
Given information: The purchase cost is 125 and photographer charges 15 for sitting fee per portrait.
Frame anEquation: Let p be the number of persons and c (p) be the total cost of the package.
Total cost =cost per person (number of persons) +purchase cost of the package
Cost per person is 15 and the purchase cost is 125. So, the equation becomes
(b)
To Calculate: The number of people in the portrait.
(b)
Answer to Problem 9CYU
6 people in the portrait.
Explanation of Solution
Given information: The purchase cost is 125 and photographer charges 15 for sitting fee per portrait. The family spent 215 to have their portrait. The equation got from part (a) is
Calculation: Let p be the number of persons and c (p) be the total cost of the package.
The family spent 215 to have their portrait. Replace the total cost by 215 and solve for p
6 people in the portrait.
Chapter 8 Solutions
Pre-Algebra, Student Edition
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