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Nana76 [90]
3 years ago
6

George is reading a book. At the end of 3 hours he has read 90 pages, and at the end of 5

Mathematics
1 answer:
jeka943 years ago
5 0

Answer:

74 pages/hour

Step-by-step explanation:

The average rate of change is the difference in the numbers of pages  divided by the difference in the numbers of hours.

At the end of 3 hours, 90 pages were read.

At he end of 5 hours, 238 pages were read.

Difference in hours: 5 hours - 3 hours = 2 hours.

Difference in pages: 238 pages - 90 pages = 148 pages

The average rate of change is the difference in pages divided by the difference in hours.

average rate of change = (148 pages)/(2 hours) = 74 pages/hour

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A 40% antifreeze solution is to be mixed with a 70% antifreeze solution to get 240 liters of a 64% solution. How many liters of
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We have 40% antifreeze and 70% antifreeze and we need to make 240 liters of 64% antifreeze.

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Double Check

153.60 / 240 = 64% antifreeze.

Step-by-step explanation:

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