3 years ago

PLEASE HELP I DONT UNDERSTAND I WILL GIVE EXTRA POINTS IF ITS RIGHT!!!!!!!!!!!!

Mathematics

1 answer:

Hitman42 [59]3 years ago

7 0

Answer:

Step-by-step explanation:

14+90= 104. 180-104= 76

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If it takes 15 gallons of gas to drive 330 miles how many miles can be driven using 20 gallon of gas

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15 / 330 = 20 / x...15 gal. to 330 miles = 20 gal to x miles
cross multiply because this is a proportion
(15)(x) = (20)(330)
15x = 6600
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x = 440 <=== 20 gallons will take u 440 miles

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to find the slope for the first one, use the formula $\frac{y2-y1}{x2-x1}$

(It's the slope formula)

so... $3=y2, 3=y1, 2=x2, 10=x1$

then plug in... $\frac{3-3}{2-10} =\frac{0}{-8} = 0$

this line has a slope of 0

As for the miles problem, to find mph, the miles have to be at 1.

so... $4x=242\\x=60.5$

therefore, he drove 60.5 mph

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