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2 years ago

A

Mathematics

2 answers:

victus00 [196]2 years ago

8 0

Answer:

A week is 7 days so if she spends 3 hours a day that 21 hours during a whole week. Since we are trying to find 4 weeks we multiply by 4

21*4=84

Hope This Helps!!!

fenix001 [56]2 years ago

7 0

Answer:

84 hours

Step-by-step explanation:

If he spends 3 hours studying every day for 4 weeks, then we would multiply 3 by the number of days in 4 weeks. There are 7 days in a week so there are 28 days in 4 weeks. 3*28 = 84.

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3 years ago

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Which system of equation should you use to solve this problem

Alex17521 [72]

Last option is the correct answer.

Step-by-step explanation:

Given that

Let x stand for the solution a and y stand for the solution B

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3 years ago

HELP MEE :)) PLEASEEE <3

Mandarinka [93]

<h3>Volume of the cylinder:</h3>

$v = \pi {r}^{2} h$

$v = 3.14 \times {2}^{2} \times 3$

$v = 37.68 \: {cm}^{3}$

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$v = lwh$

$v = 6 \times 5 \times 7$

$v = 210 \: {cm}^{3}$

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3 years ago