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PtichkaEL [24]
3 years ago
7

It takes 8 minutes for Byron to fill the kiddie pool in the backyard using only a handheld hose. When his younger sister is impa

tient, Byron also uses the lawn sprinkler to add water to the pool so it is filled more quickly. If the hose and sprinkler are used together, it takes 5 minutes to fill the pool. Which equation can be used to determine r, the rate in parts per minute, at which the lawn sprinkler would fill the pool if used alone?
+ 5r = 8
+ 5r = 1
5() = r
= 5r
Mathematics
2 answers:
Mnenie [13.5K]3 years ago
7 0

Answer:

correct answer is option;B

Step-by-step explanation:

horsena [70]3 years ago
5 0
We
let r be the rate in parts per minute at which the lawn sprinkler would fill the pool if use alone then

If the handheld hose and the lawn sprinkler are used together, we have this equation:
5/r + 5/8 = 1

Simplifying this expression,
5(8) + 5r = 1
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