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Lynna [10]
3 years ago
5

One of your friends gives you $10 for a charity walkathon. Another friend gives you an amount per mile. After 5 miles, you have

raised $13.50 total. Write an equation that represents the amount y of money you have raised after x miles.
Mathematics
1 answer:
irinina [24]3 years ago
7 0
One of your friends gives you $10 for a charity walkathon -- this is your beginning amount.
Another friend gives you an amount per mile -- you will to calculate this value.
After 5 miles, you have raised $13.50 total --
-- Since one friend gave you $10.00, subtract this from the $13.50 to give you the amount by walking the 5 miles 
-- $10.00 - $13.50 = $3.50
-- Since you walked 5 miles, divide $3.50 by 5 to give you $0.70 per mile earned.

So, an equation that represents the amount of money earned is: y = $0.70x+$10.00.
This is in slope-intercept form; the slope is $0.70 and represents the amount of money earned per mile and the intercept is $10.00 and represents the initial amount of money that you were given.
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Pf=2*(5+x+7+x)

Pf=2*(12+2x)

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She paid 26.35 for something that would usually be 31 dollars. what percent discount did she get
Alex17521 [72]

<u>Answer:</u>

She paid 26.35 for something that would usually be 31 dollars. The percentage discount she got is 15%

<u>Solution:</u>

A lady paid $26.35 for something that is usually $31, so she got a discount for the product.

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To do that we first have to check how many dollars she got off the product.

To do so we have to subtract the discounted price from the initial price.

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HA:ρ≠0

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