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Step2247 [10]
3 years ago
6

A swimming pool's large drain will empty the pool in 3 hours while its smaller drain takes 6 hours. If both drains are opened, h

ow long will it take to empty the pool?
Mathematics
2 answers:
makkiz [27]3 years ago
8 0

Answer:

2 hours

Step-by-step explanation:

6 divided by 3 is 2

Im pretty sure this is correct :)

Alisiya [41]3 years ago
8 0

Answer:

1.5 hours

Step-by Step Explanation:

the smaller drain takes 2x as long by itself then the bigger drain, so it will be 2x as quicker if both are opened.

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Please answer as fast as possible thanks
svp [43]

The correct answer is the 2nd choice because -1/6 is closer to 0 and the surface of the pool would be considered 0. -4/6 is farther away from 0 so it is less.

3 0
3 years ago
If −5e^x^2 y=x and y(−5)=0, find y′(−5) by implicit differentiation
xenn [34]
Differentiate:
-5×2(xe^x^2)y-5e^x^2dy/dx=1
-5e^x^2(2xy+y´)=1
When x=-5, y=0:
-5e²⁵y´=1, so y´(-5)=-eˉ²⁵/5
6 0
3 years ago
Joe concluded that the expression 3x + 15 + 2x is equivalent to the expression 5(x + 3). Which of these best explains how Joe re
marta [7]

Answer:

c

Step-by-step explanation:

4 0
3 years ago
-1/y^-4<br><br> A -4/y<br><br> B -4y<br><br> C y^4<br><br> D -y^4
Allushta [10]

Answer:

The answer is D: -y^4

Step-by-step explanation:

(-1/y^-4) = -1(y^4)/1 = -y^4

8 0
3 years ago
5 is 5% of what number ?
NikAS [45]

Answer:

5 % of 100 is 5.

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
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