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vladimir2022 [97]
2 years ago
13

Franklin rides his bike to the beach averaging 18mph. He rides home along the same route. What speed must he average on the way

home if he wants to average 21 miles per hour for the round trip?
Mathematics
1 answer:
Sedaia [141]2 years ago
8 0
  • <em>Answer:</em>

<em> 24 mph</em>

  • <em>Step-by-step explanation:</em>

<em>Hi there ! </em>

<em>Vm = 21mph</em>

<em>V1 = 18mph</em>

<em>V2 = ?</em>

<em>Vm = (V₁ + V₂)/2</em>

<em>2Vm = V₁ + V₂</em>

<em>V₂ = 2Vm - V₁</em>

<em>replace Vm ; V₁</em>

<em>V₂ = 2×21mph - 18mph</em>

<em>= 42mph - 18mph</em>

<em>= 24 mph</em>

<em>Good luck !</em>

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Answer:

Hence, the two numbers chosen or plotted by them are:

-75 and 75

Step-by-step explanation:

It is given that Bernita and Derek each plot a number on a number line with the properties:

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  • Also there absolute value is same.
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<em>We know that</em><em> Absolute value</em><em> of a positive number is a number itself and absolute value of a negative number is it's inverse.</em>

Hence, the two numbers that satisfy the above three properties are:

-75 and 75.

Since,

|-75|=75

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Hence, |-75|=|75|

Also |-75|+|75|=75+75=150

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2 years ago
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An accident at an oil drilling platform is causing a circular-shaped oil slick to form. The volume of the oil slick is roughly g
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Answer:

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Step-by-step explanation:

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A medication states that the odds of having an allergic reaction are 1 in 50. What is that probability states as a percent?
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