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Hunter-Best [27]
2 years ago
7

mr. salmon is getting pool ready for summer. The pool liner had some holes in it, so he decides to replace it. In order to repla

ce the liner, the water must be drained from the pool. The pool holds 25,000 gallons of water, and it takes 8 hours to drain 80% of the water. the answer is 2 hours. Why is that the answer
Mathematics
1 answer:
Ira Lisetskai [31]2 years ago
3 0

Answer:

Because 8 hours to drain 80% would mean it takes 10 hours to completely drain the pool leaving the 2 hours to drain.

Step-by-step explanation:

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Answer:

x = 15

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Find the slope y - 2 = -3 (x+1) <br><br> (show steps!!)
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point slope form

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looking at the above equation

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2 years ago
Suppose h(t) = -4t^2+ 11t + 3 is the height of a diver above the water in
nadezda [96]

Answer:

11/4 seconds

Step-by-step explanation:

We can see from the given equation that the height at the diving board is h = 3.

This is because the h(t) equation has that +3 at the end, which denotes the initial height of the diver, the height when he is standing on the board before jumping.

To find where h(t) = 3 is true, we need to set h(t) equal to 3 and solve for t.

h(t) = 3

h(t) = -4t^2 + 11t + 3 = 3

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t*(-4t + 11) = 0

so h(t) = 3 when t = 0 and when t = 11/4 sec

we already know that at t = 0 the height is 3, it is the initial height given from the equation, so we want to use the other solution for t.

the diver is back at the height of the diving board at t = 11/4 sec

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2 years ago
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Five fourths equals to one whole and two fourths
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