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Tamiku [17]
3 years ago
10

A car traveled 140 miles in 2 hours. At this rate, how many miles will the car traavel in 5 1/2

Mathematics
2 answers:
Viktor [21]3 years ago
8 0
A car traveled 140 miles in 2 hours. at this rate, how many miles will the car travel in 5 1/2 hours?

You just multiply
blsea [12.9K]3 years ago
4 0

Answer:

It would be 355

Step-by-step explanation:

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Step-by-step explanation:

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Find the perimeter of the rectangle on the centimeter grid​
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Step-by-step explanation:

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3 years ago
What are the values of a and b?
ivann1987 [24]

Answer:

<h2>a = 400/21, b = 580/21</h2>

Step-by-step explanation:

Small triangles are similar. Therefore, the sides are proportional

\dfrac{a}{20}=\dfrac{20}{21}               <em>cross multiply</em>

21a=(20)(20)       <em>divide both sides by 21</em>

a=\dfrac{400}{21}

For b, we can use the Pythagorean theorem:

b^2=\left(\dfrac{400}{21}\right)^2+20^2\\\\b^2=\dfrac{160000}{441}+400\\\\b^2=\dfrac{160000}{441}+\dfrac{176400}{441}\\\\b^2=\dfrac{336400}{441}\to b=\sqrt{\dfrac{336400}{441}}\\\\b=\dfrac{\sqrt{336400}}{\sqrt{441}}\\\\b=\dfrac{580}{21}

3 0
3 years ago
What is the volume of a prism that is 11×13×21?
posledela

Answer:

3003 units^3.

Step-by-step explanation:

Just multiply the dimensions :

11 * 13 * 21

= 143 * 21

= 3003 units^3.

8 0
3 years ago
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