The garcia family and the lee family each used their sprinklers last summer. the garcia family's sprinkler was used for  40   hours. the lee family's sprinkler was used for  20   hours. there was a combined total output of  2000l   of water. what was the water output rate for each sprinkler if the  sum  of the two rates was  60l   per hour?

Lee= 20 L per hour.

Garcia = 40L per hour

Step-by-step explanation:

This formula is:

40x + 20y = 2000L

with if being known that x + y = 60.

In this x is the rate for Garcia and y is the rate for Lee.

You can also say that x = 60 - y, which you can fill in.

40 * (60-y) + 20y = 2000

2400 - 40y + 20y = 2000

-20y = -400

y = 20 L per hour.

So x = 60 - 20 = 40L per hour

a

step-by-step explanation:

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answer: it is a.,b.,d.

step-by-step explanation: