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777dan777 [17]
4 years ago
13

Can someone help me with this problem?

Mathematics
1 answer:
Gennadij [26K]4 years ago
5 0

the answer is -3

hope it helps!


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your heart pumps about 5 quarts of blood through its chamber every 60 seconds. a swimming pool, holds 65,000 gallons of water. t
Semmy [17]
First, we find out how many quarts of water is in a swimming pool, so we do the following:
65000 gallons  *  \frac{4 quarts}{1 gallon} = 260000 quarts

And since we know the heart pumps 5 quarts of blood per 60 seconds, and there is a total of 260000 quarts to pump, we can find the amount of time it takes to pump the blood by doing the following:

260000 quarts *  \frac{60 seconds}{5 quarts} = 3120000 seconds

so now we know that it takes 3120000 seconds to pump the blood. All that is left is find out how many weeks is equal to 3120000 seconds, so we do the following:
<em />3120000 seconds *  \frac{1 week}{604800 seconds} = 5.16 weeks

So the answer is approximately 5.16 weeks

5 0
4 years ago
The exterior angle of a regular polygon measures 1∘. How many sides does the polygon have?
Lisa [10]

Answer:

360

Step-by-step explanation:

Because an exterior angle equal to 1 the total number of sides is equal to 360°.

3 0
3 years ago
What is (x+3)(2x-4) in the form of ax²+bx+c?
fenix001 [56]

FOIL

first = x*2x = 2x^2

outer = x*-4 = -4x

inner = 3 * 2x = 6x

last = 3 * (-4) = -12

add together

2x^2 -4x+6x-12

2x^2 +2x-12

5 0
3 years ago
Read 2 more answers
Someone plzzz help me with thisssssss :(
den301095 [7]

Answer:

I believe it is, so yes

Step-by-step explanation:

I am not the best at this, but I hope it is right!

6 0
3 years ago
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7/9 to the 2nd power as a fraction
Anastaziya [24]
Its 49/81 hope it helps
3 0
3 years ago
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