Write the sentence as a two-variable equation containing parentheses. Describe your variables so y depends on x. The total cost of an air-compressor rental is $47 for the first day plus $33 for each additional day.
A) y = 47 for x = 1; y = 47 + (33 - 1)x for x 1
B) y = 47 for x = 1; y = 47 + 33(x + 1) for x 1
C) y = 47 for x = 1; y = 47 + 33(x - 1) for x 1
D) y = 33 for x = 1; y = 33 + 47(x - 1) for x 1
E) y = 47 for x = 1; y = 47 + 33x for x 1

Question

Write the sentence as a two-variable equation containing parentheses. Describe your variables so y depends on x. The total cost of an air-compressor rental is $47 for the first day plus $33 for each additional day.
A) y = 47 for x = 1; y = 47 + (33 - 1)x for x > 1
B) y = 47 for x = 1; y = 47 + 33(x + 1) for x > 1
C) y = 47 for x = 1; y = 47 + 33(x - 1) for x > 1
D) y = 33 for x = 1; y = 33 + 47(x - 1) for x > 1
E) y = 47 for x = 1; y = 47 + 33x for x > 1

Quizplus · Accepted Answer

The correct equation is y = 47 + 33(x - 1) for x > 1, where y is the total cost and x is the number of days. The first day costs $47, and each additional day costs $33, so for days beyond the first, you subtract 1 from x to calculate the cost of additional days.

Write the Sentence as a Two-Variable Equation Containing Parentheses