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Lapatulllka [165]

1 year ago

5

Jerry wants to buy a pool that that has a volume of 500 cubic feet.The base area of the pool is 100 square feet.How deep is the

pool

1 answer:

Olin [163]1 year ago

4 0

Answer:

The pool is 5 ft. deep.

Step-by-step explanation:

If he wants a pool that 500 cubic feet and the base is 100, simply do 500/100

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Jan is 2/3 of Karyn's age. Jan's age 8 years ago is 2/5 of Katyn's age 4 yeats from now. Jan is how many younger than Karyn?

Elden [556K]

Answer:

12 years younger.

Step-by-step explanation:

Let Jan's age be J and Karyn's age be K.

$J= \frac{2}{3} K$

Jan's age 8 years ago is 2/5 of Karyn's age 4 yeaRs from now.

$J-8 = \frac{2}{5} (K+4)$

=> $(\frac{2}{3} - \frac{2}{5} ) K = \frac{8}{5} + 8$

=> 4K = 48 X 3

=> K= 36.

=> J= 24.

So Jan is 12 years younger.

8 0

2 years ago

A company estimates that it will sell ????(x) units of a product after spending x thousand dollars on advertising, as given by ?

zepelin [54]

Answer:

$(11\frac{1}{3},20)$

Step-by-step explanation:

If the Number of Sales of x units, N(x) is defined by the function:

$N(x)=-5x^3+235x^2-3400x+20000,10\leq x\leq 40$

$N'(x)=-15x^2+470x-3400\\When -15x^2+470x-3400=0\\x=20, x=11\frac{1}{3}$

Next, we text the critical points and the end points of the interval to see where the derivative is increasing.

$N'(10)=-200\\N'(11\frac{1}{3})=0\\N'(19)=115\\N'(20)=0\\N'(40)=-8600$

Thus, the rate of change of sales $N'(x)$ is increasing in the interval $(11\frac{1}{3},20)$ on 10≤x≤40.

7 0

2 years ago

Pls answer the question and show how or why

postnew [5]

Answer:

there is no question my dude

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

I need help with this

miv72 [106K]

Your answer would be 3

3 0

2 years ago

Find the length to the third side. If necessary, round to the nearest tenth.

Nonamiya [84]

Answer:

it would be 17 if you round the answer or 17.69.

7 0

2 years ago