<h3>The answer is:</h3><h2>D. 5 hours</h2><h2 />
The equation should be:
(70x) - (20x) = 250
Because we have all the possible answers, we can plug one of them into x to see if it equals 250 miles.
Use an educated guess. I'm going to go with 5 because it seems reasonable.
(70 * 5) - (20 * 5) = 250
Let's check to see if it equals 250:
Therefore, the answer is D. 5 hours.
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-Lena
538
Explanation
You divide 359 by 4 and then you multiply the answer by 6
Answer:
y=6x
Step-by-step explanation:
The formula you use is y=mx+b you get 4x-3y=21 you add 3 to 3y and 21 then you cancel out the 3's 4x goes down and then you add 21+3 which equals 24 then you divide it all by 4 except y, you drop the y down and you should get y=6x
Hope you get it right
Answer:y=7 is the equation of a line. The line has a y-value of 7 no matter what x-value is given.
Step-by-step explanation:




Divide -20 by 5 to get -4.

Multiply -4 and -3 to get 12.

Multiply 4 and -2 to get -8.

Multiply -8 and -1 to get 8.

Add 12 and 8 to get 20.

Calculate 4 to the power of 2 and get 16.

Subtract 16 from 20 to get 4.
