Concept explainers
Find the pair of equations can be used to determine p, the cost of a box of popcorn, and s, the cost of a soft drink from the options given.
Answer to Problem 8STP
Option H is correct.
Explanation of Solution
Given:
At the movies, the cost of 2 boxes of popcorn and 1 soft drink is $11.50. The cost of 3 boxes of popcorn and 4 soft drinks is $27.25. Which pair of equations can be used to determine p, the cost of a box of popcorn, and s, the cost of a soft drink?
4 Options are:
F: 2p+ s = 27.25 and 3p+4s = 11.50
G: 2p − s = 11.50 and 3p − 4s = 27.25
H: 2p+ s = 11.50 and 3p + 4s = 27.25
J: p + s = 11.50 and p + 4 = 27.25
Calculation:
The cost of 2 boxes of popcorn and 1 soft drink is $11.50
The equation:
The cost of 3 boxes of popcorn and 4 soft drinks is $27.25
The equation:
Thus, Option H is correct.
Chapter 11 Solutions
Algebra 2
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