2 years ago

McKenzie runs 1. 5 mi every 10 min. At this rate, how many miles does she run in 1 hour? Enter your answer in the box.

Mathematics

1 answer:

Nat2105 [25]2 years ago

8 0

Answer:

Step-by-step explanation:

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Six times the sum of a number and 8 is 2

ehidna [41]

6(n+8)=2
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6n + 48 - 48 = 2 - 48
6n = -46
N = -46/6
N = -7 2/3

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3 years ago

Simplify the following expression. √14 / √18

3241004551 [841]

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2 years ago

At a speed of 22 revolutions per minute, how long will it take a wheel of radius 10,

Bogdan [553]

Well, if the radius is 10, then the circumference is $\frac{2*10*22}7=\frac{440}7$
What's the unit? Either way, 22 rev. per minute means each minute you go by $22*\frac{440}7=\frac{9680}7$ units per second. Now you got the linear speed, just find out the time by dividing the distance by the speed!
So, what's the unit for the radius?

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3 years ago

The expression below is scientific notation for what number?<br> 3.34.*10^-4

Stella [2.4K]

0.000334 is the scientific notation

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2 years ago

Find the area of a circle whose circumference is 18.84.

ivann1987 [24]

Answer:

310.23

Step-by-step explanation:

circumference is radius * 2

to get radius from circumference, divide circumference by 2

18.84 / 2 =9.42

area for circle:

pi * r^2

3.14 * 9.94^2

3.14 * 98.8

310.23

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1 year ago