3 years ago

Which is bigger 0.21, 21%

Mathematics

2 answers:

andrew11 [14]3 years ago

5 0

21% is bigger than 0.21

ryzh [129]3 years ago

3 0

0.21 is literally 21 percent.

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The length of a rectangle is eight more than twice its width. The perimeter is 88 feet. Find the dimensions of the rectangle.

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Answer:

length: 31

width: 12

Step-by-step explanation:

l=8+2w

p=2l+2w=88

(8+2w)+(8+2w)+w+w

16+6w=88

6w=72

w=12

l=8+2(12)

l=32

sorry if this was confusing

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Answer:

The metal worker should use 10 kgs of 25% copper alloy and 40kgs of 70% copper alloy to make it

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Answer:

Step-by-step explanation:

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4 years ago

2) As part of traffic accident investigations, the speed of a car involved can be approximately determined by checking actual sk

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a) The speed of car was 60 mph.

b) The speed of car was 45 mph.

Step-by-step explanation:

Given,

a = actual skid marks

p = test skid marks

Formula;

$s=30*\sqrt{\frac{a}{p}}\\$

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Putting in formula;

$s = 30*\sqrt{\frac{144}{36}}\\\\s=30*\sqrt{4}\\\\s=30*2\\\\s=60$

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The speed of car was 45 mph.

Keywords: substitution, speed

Learn more about substitution at:

#LearnwithBrainly

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3 years ago