9
QuizMultiple Choice

Rational Inequalities

Question 9 of 10 • NC-Precalculus

Two hoses are filling a pool. The first hose fills at a rate of x gallons per minute. The second hose fills at a rate of 15 gallons per minute less than the first hose. To meet the pool maintenance company’s schedule, the pool needs to fill at a combined rate of at least 10 gallons per minute. The inequality represents the combined rates of the hoses:Which answer choice includes all solutions to the inequality and identifies which interval(s) contain viable filling rates for the hoses?

Question illustration
Answer
A
; both intervals contain viable rates for the hoses
Option A
B
; only contains viable rates for the hoses
Option B
C
no interval contains viable rates for the hoses
Option C
D
only contains viable rates for the hoses
Option D
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