Paytonsmommy09
22.05.2020 •
Mathematics
One pump can drain a pool in 12 minutes. When a second pump is used, the pool only takes 7 minutes to
drain. How long would it take the second pump to drain the pool if it were the only pumped used?
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Ответ:
2(x-7)<=40
First, I will distribute the two. I will get 2x-14<=40. Then I will add 14 to both sides, getting 2x<=54. Next, I will divide2 by both sides and my answer will be x<=27.