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faltersainse [42]
3 years ago
15

3 1/2+2 5/8+5 11/12=? Write your answer as a mixed number.

Mathematics
1 answer:
sergeinik [125]3 years ago
3 0
3 1/2 = 7/2
2 5/8 = 21/8
5 11/12 = 71/12

7/2 x 6/6 = 42/12

42/12 + 71/12 = 113/12
21/8 x 3/3 = 63/24
113/12 x 2/2 = 226/24

63/24 + 226/24 = 289

289/24 = 12.0416

12  4/100, or simplified  12 1/25 is your answer

hope this helps
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Step-by-step explanation:

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3 years ago
Please someone help me asap!!!!!!!
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The answer will be D.

Susan Brownell Anthony was an American social reformer and women's rights activist who played a pivotal role in the women's suffrage movement.

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3 years ago
An art museum has a pentagon-shaped room. When drawn to scale on a coordinate grid, the corners of the room are points (18,20):
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Answer:

2\ gal

Step-by-step explanation:

we know that

the formula to calculate the distance between two points is equal to

d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}

we have

A(18,20),B(4,20),C(4,4),D(16.2),E(22.10)

step 1

Find the distance AB

we have

A(18,20),B(4,20)

substitute in the formula

d=\sqrt{(20-20)^{2}+(4-18)^{2}}

d=\sqrt{(0)^{2}+(-14)^{2}}

AB=14\ ft

step 2

Find the distance BC

we have

B(4,20),C(4,4)

substitute in the formula

d=\sqrt{(4-20)^{2}+(4-4)^{2}}

d=\sqrt{(-16)^{2}+(0)^{2}}

BC=16\ ft

step 3

Find the distance DE

we have

D(16.2),E(22.10)

substitute in the formula

d=\sqrt{(10-2)^{2}+(22-16)^{2}}

d=\sqrt{(8)^{2}+(6)^{2}}

d=\sqrt{100}

DE=10\ ft

step 4

Find the distance AE

we have

A(18,20),E(22.10)

substitute in the formula

d=\sqrt{(10-20)^{2}+(22-18)^{2}}

d=\sqrt{(-10)^{2}+(4)^{2}}

d=\sqrt{116}

AE=10.77\ ft

step 5

Find out the area of the four walls

To determine the area sum the length sides and multiply by the height of the walls

so

A=(AB+BC+DE+AE)h

substitute the given values

The height of the walls is 10 ft

A=(14+16+10+10.77)10

A=(50.77)10

A=507.7\ ft^2

step 6

Determine the number of gallons needed to paint the four walls

we know that

one gallon of paint is enough to cover 400 square feet

using proportion

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Round up

x=2\ gal

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