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AVprozaik [17]
3 years ago
8

A plane flies the 700 miles from Atlanta to Detroit in 11/4 hours. What is the plane's average air speed, in miles per hour?

Mathematics
1 answer:
Lynna [10]3 years ago
4 0
The answer is 15.....
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morgan poured 9/10 liter of punch into each of 6 bottles how many liters of punch did she pour in all
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Answer:

5 and 2/5 liters     or          5.4 liters

Step-by-step explanation:

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9 times 6 is 54. 54 divided by 10 is 5.4 which is the same as 5 and 2/5

3 0
3 years ago
Solve.
lions [1.4K]

Answer:

b=9,a=12

Step-by-step explanation:

I solved by substitution:

b = 3/4a  ---> plug this into the other equation

a + b = 21   is now    a + 3/4a = 21

Reduce: 7/4a = 21

a = 12

Now solve for b:

b=3/4a is now b=3/4(12)

b=9

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