15 POINTS!!!
2 answers:
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Answer:
Bailey family's sprinkler was used for 35 hours and Harris family's sprinkler was used for 20 hours.
Step-by-step explanation:
Set up a system of equations.
Let be "b" the time Bailey family's sprinkler was used and "h" the time Harris family's sprinkler was used.
Then:
You can use the Elimination method. Multiply the first equation by -15, then add both equations and solve for "h":
Substitute into an original equation and solve for "b":
Answer:
D) t=4d+5
Step-by-step explanation:
If d=1,
If d=2,
If d=4,
Therefore,