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ipn [44]
2 years ago
8

A motorboat maintained a constant speed of 28 miles per hour relative to the water in going 45 miles upstream and then returning

. The total time for the trip was 3.5 hours. Use this information to find the speed of the current.
Mathematics
1 answer:
Sveta_85 [38]2 years ago
3 0
The speed of the current is 7 miles per
hour.
Step-by-step explanation:
Let × represent speed of the current.
We have been given that a motorboat
maintained a constant speed of 11 miles per
hour relative to the water in going 18 miles
upstream and then returning.
The speed of motorboat while going
upstream would be 11
The speed of motorboat while going
downstream would be 11 + 2
Time
Distance
Speed
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3 years ago
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Read 2 more answers
Please help me with #'s 5&6
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6.\\4(x-10)^2=25\qquad|:4\\\\(x-10)^2=\dfrac{25}{4}\to x-10=\pm\sqrt{\dfrac{25}{4}}\\\\x-10=-\dfrac{\sqrt{25}}{\sqrt4}\ \vee\ x-10=\dfrac{\sqrt{25}}{\sqrt4}\\\\x-10=-\dfrac{5}{2}\ \vee\ x-10=\dfrac{5}{2}\\\\x-10=-2.5\ \vee\ x-10=2.5\qquad|+10\\\\\boxed{x=7.5\ \vee\ x=12.5}

7 0
4 years ago
Which of the following is the graph of y= start root -x -3 endroot?
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Step-by-step explanation:

8 0
3 years ago
Which is a solution to 2x + 1 = 21?
Bezzdna [24]

Answer:

x = 10 is your answer

- Explain -

Step 1: subtract 1 from both sides (subtraction of equality)

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Therefore the answer is x = 10

4 0
3 years ago
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