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3 years ago

The length of a rectangle is three times its width.

Mathematics

1 answer:

lilavasa [31]3 years ago

5 0

Answer:

I think the answer is 40.

Step-by-step explanation:

Since the length is three times its width, the width is 5 and the length is 15, since you find the area by doing length * width you get 75. You get perimeter by adding all the sides which is, 5+5+15+15= 40.

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3 years ago

The graph shows the distance, y, in miles, of a moving motorboat from an island for a certain amount of time, x, in hours:

lisabon 2012 [21]

Answer: The speed of the motorboat is 70 miles per hour

Step-by-step explanation: Subtract the initial distance, 35, from the distance at any given time, then divide the remainder by the hours.

For example, at 2 hours, the distance shown on the graph is 175 miles

Subtract: 175 -35 = 140. Then divide 140/2 = 70

At 4 hours, the distance shown is 315 miles.

Subtract: 315 - 35 = 280. Then divide 280/4 = 70

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3 years ago

If n and k are positive integers and 8*n = 2*k , what is

ziro4ka [17]

Answer: 1/4

Step-by-step explanation:

$8n=2k\\\\4n=k\\\\4=\frac{k}{n}\\\\\frac{n}{k}=\frac{1}{4}$

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2 years ago

What is the remainder when 58 is divided by 7?

s2008m [1.1K]

Answer:2

Step-by-step explanation:

If you devide 58 by 7,you will get 8 as quotient..so 7×8=56..

So you will find (58-56)=2 as remainder..

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3 years ago

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Find the exact value of cos(7pi/12) using half-angle identities. I'm still not sure how to solve this :( Any help is appreciated

Norma-Jean [14]

Did you plug it into your calculator? That's a great place to start.

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3 years ago

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