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2 years ago

What are the equivalent fraction and decimal for 20%

Mathematics

2 answers:

LUCKY_DIMON [66]2 years ago

4 0

.2 (simplified from 0.20)

2/10 (simplified from 20/100)

masya89 [10]2 years ago

3 0

Well, you know that 20% is out of 100.
So, take a fraction that is equivalent to 20% of 100. ( 2/10 works fine) or, 1/5
Then, take 20% and luckily, 20% is a benchmark so .2 (out of 10) works fine.

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The length of a rectangle is 45 inches and the width is 8 inches. a similar rectangle has a width of 24 inches. what is the peri

jenyasd209 [6]

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3 years ago

The teacher said estimate this with out counting 1 by 1 then divide it by 20 HELP PLEASSEE

WARRIOR [948]

Well, first fin dyour best estimate mine is...600
Then after you got your best estimate divide that my 20
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3 years ago

What is 2(3/4n+8=1/4n-12

mezya [45]

N= -112/5. Use mathpapa for step by step don’t use in school teachers will know.

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2 years ago

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Zach wants to build a slanted skateboard ramp. He knows he wants the ramp to form a 15 degrees angle with the ground and be 4 fe

Fynjy0 [20]

Answer: The ramp would be 15.5 feet long.

Step-by-step explanation: Please refer to the attached diagram for details.

Angle C shows the angle to be formed by the ramp from the ground, which is 15 degrees. Also, from the ground, it’s going to be four feet tall, which is line AB. The top of the ramp is point A, which makes line AC the entire length of the ramp. Since we have a reference angle (angle C) and two sides, the opposite and the hypotenuse, we shall apply the trigonometric ratio.

SinC = opposite/hypotenuse

Sin 15 = 4/b

By cross multiplication we now have

b = 4/Sin15

b = 4/0.2588

b = 15.4599

Approximately b = 15.5

Therefore the length of the ramp would be 15.5 feet

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3 years ago

(05.03)(picture included)Sue has to cut her grandma's grass this weekend and wants to know exactly how much area she will be cut

kifflom [539]

Answer:

Solution given:

BD=35ft

AC=43ft

AB=8ft

EF=33-8=25ft

AE=26ft

Now

area of right angled triangle ∆AEF

=½(EF*AE)=½(25×25)=312.5ft²

area of parallel trapezoid=½AB(BD+AC)

=½*8(35+43)=312ft²

So

Area of polygon : 312.5+312=624.5ft² is a required answer.

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2 years ago

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