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3 years ago

Traveling at 65 miles per hour, how many minutes, rounded to the nearest whole number, does it take to drive 125 miles from San

Diego to Malibu?

Mathematics

1 answer:

DENIUS [597]3 years ago

6 0

$1h=60min\\\\65\ mi\ -\ 1\ h=60\ min\\\\125\ mi-\ x\ min\\\\cross\ multiply\\\\65\cdot x=125\cdot60\\\\65x=7500\ \ \ |divide\ both\ sides\ by\ 65\\\\x=\dfrac{7500}{65}\approx115\\\\Answer:\boxed{115\ min}$

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Answer:

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Step-by-step explanation:

Step 1: Write equation

6(5 - 2x) + 12 = -66

Step 2: Solve for <em>x</em>

Distribute 6: 30 - 12x + 12 = -66
Combine like terms: 42 - 12x = -66
Subtract 42 on both sides: -12x = -108
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Step 3: Check

<em>Plug in x to verify it's a solution.</em>

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