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djyliett [7]
3 years ago
5

A scooter can travel 72 mi per gallon of gasoline and holds 2.3 gal. the function d(x)-72x represents the distance d(x), in mile

s, that the scooter can travel with x gallons of gasoline. How many miles can the scooter go with a full tank of gas ?
Mathematics
1 answer:
Natasha2012 [34]3 years ago
7 0
The scooter can go 165.6 miles
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What vaule of x makes th question true? 3x+2(x-5)=50 a. 8 b.9 c.11 d.12
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Hey Tierra7l, 

Lets solve your equation together step by step. 

3x+2\left(x-5\right)=50 

\mathrm{Expand}\:2\left(x-5\right):\quad 2x-10 

\mathrm{Distribute\:parentheses\:using}:\quad \:a\left(b+c\right)=ab+ac 

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2\cdot \:x+2\left(-5\right) 

\mathrm{Apply\:minus-plus\:rules} 

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\mathrm{Add\:similar\:elements:}\:3x+2x=5x 

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\mathrm{Add\:}10\mathrm{\:to\:both\:sides} 

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\mathrm{Simplify} 

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\mathrm{Divide\:both\:sides\:by\:}5 

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\mathrm{Simplify} 

x=12 

Hope this helps, 

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