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3 years ago

Find the area of the shape shown below

Mathematics

1 answer:

PSYCHO15rus [73]3 years ago

7 0

Add the top and bottom together, divide by 2, then multiply by the height:

Area = (7.5 + 2.5)/2 x 2.5

Area = 10/2 x 2.5

Area = 5 x 2.5

Area = 12.5 square units.

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Sarah’s mom took 3 hours to clean, but when Sarah helped, it took them 2 hours to clean. How many hours will it take Sarah to cl

Aleonysh [2.5K]

Answer:

It takes them 1.875 hours.

Step-by-step explanation:

Here, the job is cleaning the house.

Mom does 1 job in 3 hours.

In 1 hour, mom does 1/3 of the job.

Dad does 1 job in 5 hours.

In 1 hour, dad does 1/5 of the job.

Mom and dad working together do the job in x hours.

In 1 hour, mom and dad together do 1/x of the job.

1/3 + 1/5 = 1/x

5/15 + 3/15 = 1/x

8/15 = 1/x

8x = 15

x = 15/8 = 1.875

Answer: It takes them 1.875 hours.

your welcome

6 0

2 years ago

Read 2 more answers

Write the equation of a line that is perpendicular to y= 2/3x + 3 and passes through the point (4, -8).

exis [7]

Answer:

Step-by-step explanation:

Perp. : -3/2

y + 8 = -3/2(x - 4)

y + 8 = -3/2x + 6

y = -3/2x - 2

5 0

3 years ago

Question

Kaylis [27]

Answer:

55w+145

Step-by-step explanation:

10w+120+45w+25 = 55w+145

4 0

2 years ago

How many hundreths equal 6 tenths

Tresset [83]

6 tenths = .6 => .60
Then 6 tenth equals to 60 hundredths.

6 0

3 years ago

HELP 2 (3x-7)=-4x-6+9x-8

Leni [432]

2 (3x - 7) = -4x - 6 + 9x - 8 Simplify 2 (3x - 7)
6x - 14 = -4x - 6 +9x - 8 Combine like terms (-4x and 9x) (-6 and -8)
6x - 14 = 5x - 14 Subtract 5x from both sides
x - 14 = -14 Add 14 to both sides
x = 0

Check your answer.

2 (3x - 7) = -4x - 6 + 9x - 8 Substitute x for 0
2 (3(0) - 7) = -4(0) - 6 + 9(0) - 8 Multiply 3(0)
2 (0 - 7) = -4(0) - 6 + 9(0) - 8 Multiply -4(0)
2 (0 - 7) = 0 - 6 + 9(0) - 8 Multiply 9(0)
2 (0 - 7) = 0 - 6 + 0 - 8 Subtract (0 - 7)
2(-7) = 0 - 6 + 0 - 8 Multiply 2(-7)
-14 = 0 - 6 + 0 - 8 Get rid of the unneccesary 0s
-14 = -6 - 8 Subtract (-6 - 8)
-14 = -14

So, x = 0 .

5 0

2 years ago