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2 years ago

Help... do I add or divide?

Mathematics

2 answers:

Mekhanik [1.2K]2 years ago

5 0

The answer is A. You are trying to find how much she makes an hour but we know she made 480 for 24 so you divide 480/24 and get 20

Murrr4er [49]2 years ago

3 0

Answer:

Lisa earned in 24 hours work = $480

Lisa earned in 1 hour work = $480/24

= $20

Right option is (a) $20.

 $\\$ 

Step-by-step explanation:

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jacob used 1/7 of a liter to fill 1/9 of the fush aquarium. how many liters if water are needed to fill the aquariam? please lea

Sveta_85 [38]

Answer:

1.2 liters

Step-by-step explanation:

7/7 of a liter is one liter. and you still are only at 7. you need to get to 9 you and 2 1/7 liters and that becomes 9/7 liters which = 1.2

7 0

3 years ago

Suppose you deposit $1000 in a college fund that pays 7.2% interest compounded

SSSSS [86.1K]

Answer: A = P(1 + r/n)nt

= $1415.71

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3 years ago

Identify the fraction that is equivalent to the given fraction. 4/7

Daniel [21]

Answer:

A 20/28

Step-by-step explanation:

4 0

3 years ago

Five less than the product of a number and-8 is -77

SVETLANKA909090 [29]

five less than the product of a number and-8 is -77

-8n -5 = -77

add 5 to each side

-8n = -72

divide by -8

n =9

5 0

3 years ago

Solve for the two acute angles

sineoko [7]

Answer:

Angle A = 37 degrees, and Angle B = 53 degrees.

Step-by-step explanation:

We know that this is a right triangle, where angle C is 90 degrees. Since we know the sum of all these angles is 180 in any triangle, we can create an equation.

Angle A = 6x + 7

Angle B = 11x-2

Angle C = 90 degrees

A + B + C = 180

Substitute:

6x + 7 + 11x - 2 + 90 = 180

17x + 5 + 90 = 180

17x + 5 = 90

17x = 85

x = 5

Now substitute 5 for x in both acute angles and you will get your answer.

Angle A = 6(5) + 7

Angle A = 30 + 7

Angle A = 37

Angle B = 11(5) - 2

Angle B = 55 - 2

Angle B = 53

Angle A = 37 degrees, and Angle B = 53 degrees.

Hope this helps.

7 0

2 years ago