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Burka [1]
3 years ago
13

When traveling to work, Cherise averages 60 miles per hour.Because of heavy traffic in the evening, she averages only 40 miles p

er hour. If the distance from home to work is 80 miles, how much longer does it take Cherise to make the drive home?
Mathematics
1 answer:
Slav-nsk [51]3 years ago
4 0
<h3>Answer:  40 minutes</h3>

============================================================

Explanation:

The distance traveled is d = 80 miles.

When going to work, her speed is r = 60 mph. She takes t = d/r = 80/60 = 4/3 hours which converts to 80 minutes. Multiply by 60 to go from hours to minutes.

Notice how the '80' shows up twice (in "80 miles" and "80 minutes"). This is because traveling 60 mph is the same as traveling 1 mile per minute.

-----------------

Now as she's coming home, her speed becomes r = 40 and she takes t = d/r = 80/40 = 2 hours = 120 minutes.

The difference in time values is 120 - 80 = 40 minutes.

Her commute back home takes 40 more minutes compared to the morning drive to work.

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6 0
3 years ago
A 13 foot board is cut into two pieces. The length of the shorter piece is 1 ft more than half the length of the longer piece. F
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The length of the pieces are 5 foot and 8 foot.

<h3>what is Algebra?</h3>

Algebra is the part of mathematics that helps represent problems or situations in the form of mathematical expressions.

Given:

Total length of board is 13 foot.

let the length of first piece be x

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So, x+ y = 13 .......(1)

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Now, solving (1) and (2) we get

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Please help with this question
tankabanditka [31]

Answer:

Slope = 4

Step-by-step explanation:

Hope this helps!

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-Josh

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