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Zepler [3.9K]
3 years ago
7

Altogether, Tim, Laura, and Eric worked 210 hours campaigning for their friend Jake who was running for the senate. Laura worked

10 hours more then Tim, and Eric worked twice as many hours as Laura. How many hours did Laura work on the campaign?​
Mathematics
1 answer:
Gekata [30.6K]3 years ago
3 0

Let \:  x  \: be  \: the  \: time  \: which \:  Laura \:  worked \\  The \:  time  \: Tim  \: worked:x - 10 \\ The  \: time \:  Eric \:  worked:2x \\ We \:  have  \: an \:  equation:x + x - 10 + 2x = 210 \\  <   =  > 4x = 220 \\  <  =  > x = 55 \: (hrs) \\ So \:  Laura  \: worked  \: for  \: 55 \:  hours  \: on \:  the  \: campaign.

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Hope this helps



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geniusboy [140]

The point that Sam's house is located is at (2.5, -2)

<h3 /><h3>Midpoint of coordinate points</h3>

The formula for calculating the midpoint of coordinate is expressed as:

M(x, y) = {(x₁+x₂)/2, (y₁+y₂)/2}

Given the coordinate between their locations at (-4, 4) and (-9, 8)

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Hence the point that Sam's house is located is at (2.5, -2)

Learn more on midpoint here: brainly.com/question/5566419
#SPJ1

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