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3 years ago

÷5=9 what is the answer

Mathematics

2 answers:

bonufazy [111]3 years ago

7 0

Answer:

45÷5=9

Step-by-step explanation:

You just multiply 9 by 5 and that gets you the answer.

jolli1 [7]3 years ago

7 0

Answer:

45 Hold on, our servers are swamped. Wait for your answer to fully load.

Hold on, our servers are swamped. Wait for your answer to fully load.

vHold on, our servers are swamped. Wait for your answer to fully load.

Step-by-step explanation:

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A concert hall contains 8 sections of seats with the same number of seats in each section. If there were 248 seats, how many sea

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Just divide 248 by 8

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A teacher has 27 students in her class .She asks the students to form as many groups as possible.How many students will not be i

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Which equation is related to this equation? m*8=24 A. m=25\8 B. m=24*8 C. m=24-8 D. m=8\24

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4 years ago

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Which is a solution to the equation a number divided by 7 is at least 4? 26, 27, 28, 29

Nastasia [14]

Answer:

28 and 29

Step-by-step explanation:

the equation is x÷7≤4

26÷7= 3.7 ≠ x÷7≤4

27÷7= 3.8 ≠ x÷7≤4

28÷7=4

29÷7= 4.14=x÷7≤4

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2 years ago

A tank is in the shape of an inverted circular cone with height 500 ft and base radius 20 ft. It is filled with water to a heigh

SashulF [63]

Answer:

1.338 * 10 ^ 9 lb-ft

Step-by-step explanation:

We have the following information:

Water density 62.4 lb / ft ^ 3

work equals force per distance, like this:

W = F * d

with the information in the statement we can deduce:

20/500 = r / y

r = y / 25

now the differential volume would be:

dv = pi * (r ^ 2) * dy

dv = pi * ((y / 25) ^ 2) * dy

dv = pi * (y ^ 2/625) * dy

weight of slice would be:

62.4 * pi * (y ^ 2/625) * dy

= 0.3136 * y ^ 2 * dy

work for the removal of slice:

(500 - y) * 0.3136 * y ^ 2 * dy

Now the total work is the integral of the previous expression that goes from y = 0 to y = 400

Total work = integral (from 0 to 400) {(500 - y) * 0.3136 * y ^ 2 * dy}

Total work = integral (from 0 to 400) {0.3136 * (500 * y ^ 2 - y ^ 3) dy}

We integrate and we have:

Total work = 0.3136 * ((500/3) * y ^ 3 - (y / 4) ^ 4)

Total work = 0.3136 * ((500/3) * 400 ^ 3 - (400/4) ^ 4) - 0.3136 * ((500/3) * 0 ^ 3 - (0/4) ^ 4)

Total work = 0.3136 * ((500/3) * 400 ^ 3 - (400 ^ 4) / 4)

Total work = 1.338 * 10 ^ 9 lb-ft

5 0

3 years ago