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3 years ago

nicole is taking a train yo Washington DC.The train travels 234 miles in 4 1/2 hours.Express this relationship as a unit rate

Mathematics

1 answer:

Ivenika [448]3 years ago

8 0

Answer:

52 miles per hour.

Step-by-step explanation:

Divide 234 by 4.5, as that is what you must divide 4.5 by to get 1.

234/4.5 = 52 miles per hour.

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What is 4/625 to the 2nd power?

lara [203]

$Both\ nominator\ and\ denominator\ are\ to\ the\ 2nd \ power:\\\\(\frac{4}{625})^2=\frac{4^2}{625^2}=\frac{16}{390625}$

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4 years ago

What is the simplified form of the following expression? 2 startroot 18 endroot 3 startroot 2 endroot startroot 162 endroot

nataly862011 [7]

The simplified form of the provided expression of 2 startroot 18 endroot +3 startroot 2 endroot startroot +162 endroot is 18√2.

<h3>What is the simplified form of an equation?</h3>

The simplified form of an equation is the simplest way of expressing the equation, by applying the required operations of mathematics.

The equation provided in the problem is,

$2\sqrt{18}+3\sqrt{2}+\sqrt{162}$

Let the simplified form of the above expression is <em>n. </em>Thus,

$n=2\sqrt{18}+3\sqrt{2}+\sqrt{162}$

Rewrite the equation to solve it further as,

$n=2\sqrt{3\times3\times2}+3\sqrt{2}+\sqrt{9\times9\times2}\\n=2\sqrt{3^2\times2}+3\sqrt{2}+\sqrt{9^2\times2}$

The square of the term cancel out the square root of it. Thus,

$n=2\times3\sqrt{2}+3\sqrt{2}+9\sqrt{2}\\n=6\sqrt{2}+3\sqrt{2}+9\sqrt{2}\\n=(6+3+9)\sqrt{2}\\n=18\sqrt{2}$

Thus, the simplified form of the provided expression of 2 startroot 18 endroot +3 startroot 2 endroot startroot +162 endroot is 18√2.

Learn more about the simplified form here;

brainly.com/question/1597694

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2 years ago

Please answer this question, we have a test on it tomorrow. I will probably be posting more.... I will mark brainiest IF you get

yKpoI14uk [10]

The answer is in the picture

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3 years ago

A car dealership sold the following colors of cars in January.

sweet [91]

The answer is A. 28%

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3 years ago

I need help with my math assignment

Kay [80]

Answer:

Step-by-step explanation:

Slope m is defined as m=(y2-y1)/(x2-x1) in this case

m=(218-155)/(22-15)=63/7=9

y=mx+b

y=9x+b, using point (15,155) we can solve for the y intercept b

155=9(15)+b

155=135+b, b=20 so the line is

y=9x+20

In thirty days there will be

y=9(30)+20=290 coins

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3 years ago