You use a garden hose to fill a pool. If the water level rises 17 centimeters every 7 minutes and you record the data point of (21,y), what is the value of y? Use slope to justify your answer.

Step-by-step explanation:

If the water level rises 17 centimeters every 7 minutes, then (21, y)means that after, 21 minutes, it would have rise by y centimeters, using the equality postulate:

17cm = 7min

y =  21min

Cross multiply

7y = 21*17

y = 21*17/7

y = 3*17

y = 51cm

Hence the value of y is 51

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