Quiz on Sections 3-5 & 3-6 8 of 228 of 22 Items
07:37 / 50:00

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

5 times StartFraction 5 Over 8 EndFraction equals r.+ 5r = 1
Image with alt text: 5 times StartFraction 5 Over 8 EndFraction equals r., + 5, r, = 1

StartFraction 5 Over 8 EndFraction equals 5 r.= 5r
Image with alt text: StartFraction 5 Over 8 EndFraction equals 5 r., = 5, r

StartFraction 5 Over 8 EndFraction plus 5 r equals 8.+ 5r = 8
Image with alt text: StartFraction 5 Over 8 EndFraction plus 5 r equals 8., + 5, r, = 8

5(5 times StartFraction 5 Over 8 EndFraction equals r.) = r