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Usimov [2.4K]
3 years ago
7

A motorboat travels 9 miles downstream (with the current) in 30 minutes. The return trip upstream (against the current) takes 90

minutes. Which system of equations can be used to find x, the speed of the boat in miles per hour, and y, the speed of the current in miles per hour? Recall the formula d = rt. 9 = 0.5(x – y) 9 = 1.5(x + y) 9 = 1.5(x – y) 9 = 0.5(x + y) 0.5 = 9(x – y) 1.5 = 9(x + y) 1.5 = 9(x – y) 0.5 = 9(x + y)

Mathematics
2 answers:
dalvyx [7]3 years ago
7 0

Answer:

This might help u........

Aleonysh [2.5K]3 years ago
7 0

Answer:

the answer is B

Step-by-step explanation:

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nata0808 [166]

Answer:

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Step-by-step explanation:

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2 years ago
For what value of a does 9=1/27a-3
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Answer:

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Step-by-step explanation:

9=1/27 a -3

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VARVARA [1.3K]
Bring like terms together
(REMEMBER CHANGE THE SIGN WHEN MOVING ACROSS THE EQUAL SIGN i.e. - becomes + and + becomes -)
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