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3 years ago

An antelope can run 152.5 miles in 2.5 hours. What is the average speed of the antelope?

1 answer:

7 0

$average\ speed=\frac{distance}{time}\\\\
average\ speed=\frac{152,5miles}{2,5hour}=61\frac{miles}{hour}\\\\
Average\ speed\ is \ equal\ to\ 61\frac{miles}{hour}.$

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Mariulka [41]

Answer:

x = -8

Step-by-step explanation:

Given the equation:

$27^x=9^{x-4}$

Note that

$27=3^3\\ \\9=3^2,$

then

$27^x=(3^3)^x=3^{3x}\\ \\9^{x-4}=(3^2)^{x-4}=3^{2(x-4)}$

Rewrite the equation as

$3^{3x}=3^{2(x-4)},$

then

$3x=2(x-4)\\ \\3x=2x-8\\ \\3x-2x=-8\\ \\x=-8$

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Answer:

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Step-by-step explanation:

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Dmitriy789 [7]

To estimate this question, you can round the numbers to be compatible, to make it easier for yourself. The numbers should be able to be divided cleanly, as this is an estimate, not the actual problem solving. You could, for example, round 341 to 300, and 28 to 30, and divide them to get 10.
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3 years ago

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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