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3 years ago

Simplify the given expression. Assume x doesn’t = 0. (20x^-3/10x^-1)^-2

Mathematics

1 answer:

Zina [86]3 years ago

5 0

Answer:

X^4 over 4

Step-by-step explanation:

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2 years ago

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8×4=(A×7)-(A×3) what is the value of A in the equation shown??

Pani-rosa [81]

Answer:

Step-by-step explanation:

8×4 = (A×7) - (A×3) = A(7-3) = A×4

A = 8

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2 years ago

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MissTica

Answer:

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Step-by-step explanation:

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2 years ago

What is the answer is it A. or B. or C. ?

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3 years ago

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Mike hiked to a lake in 4.5 hours at an average rate of 2

aleksandrvk [35]

Answer:

It took Pedro 3.81 hours to reach the lake.

Step-by-step explanation:

Time taken by Mike to hike a lake = 4.5 hours

Average rate of Mike while hiking the lake = $2\frac{1}{5}\ miles/hr$

Formula for distance can be seen as:

$Distance = Speed\times Time$

Distance traveled by Mike = $4.5 \times 2\frac{1}{5} = 4.5\times \frac{11}{5} = 9.9\ miles$

Rate of Pedro while hiking the same distance = $2\frac{3}{5}\ miles/hr = \frac{13}{5}\ miles/hr$

Given that, Pedro also travels the same distance.

And we have to find the Time.

$Time = \dfrac{Distance}{Speed}$

$Time = \dfrac{9.9}{\frac{13}{5}}\\\Rightarrow Time = \dfrac{9.9\times 5}{13} = \bold{3.81\ hours}$

It took Pedro 3.81 hours to reach the lake.

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2 years ago