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3 years ago

9

PLS HELP ILL GIVE BRAINLY- Adam went to visit his grandparents 500 miles away he passed through 2 states and crossed 3 rivers ho

w many miles was it from his grandparents to his hometown?

1 answer:

Lemur [1.5K]3 years ago

4 0

Answer:

I believe that his hometown would be 500 miles away

Step-by-step explanation:

I hope this helps :D

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2 years ago

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3 years ago

By driving 8 mph faster than Bob, John can make a 230 mile trip in one half hour less. How fast does Bob drive on the trip? Roun

____ [38]

Answer: The speed of Bob is 56.8 km/hr.

Step-by-step explanation:

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Let the speed of John be 'x-8'.

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According to question, we get that

$\dfrac{230}{x}-\dfrac{230}{x+8}=\dfrac{3}{2}\\\\230\dfrac{x+8-x}{x(x+8)}=\dfrac{3}{2}\\\\\dfrac{230\times 8}{x^2+8x}=\dfrac{3}{2}\\\\\dfrac{1840}{x^2+8x}=\dfrac{3}{2}\\\\1840\times 2=3x^2+24x\\\\3680=3x^2+24x\\\\3x^2+24x-3680=0\\\\x\approx 56.8\ km/hr$

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3 years ago