3 years ago

HELP!

Mathematics

1 answer:

-Dominant- [34]3 years ago

6 0

Answer:

the answer is B. $36 for working 4 hours

Step-by-step explanation:

took the test.

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the ratio of the number of adults to the number of children in a library is 12:5 if there are 45 children in the library how my

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Question Help

lorasvet [3.4K]

Answer:

The speed of the boat is 20 km/hr

Step-by-step explanation:

Let s be the speed of boat in still water

Let d be the distance

Upstream speed = s-4

Jane took 30 min to drive her boat upstream to water-ski at her favorite spot.

So, Distance traveled in upstream = $Speed \times time =(s-4) \times \frac{30}{60}$

Downstream speed = s+4

So, Distance traveled in downstream = $Speed \times time =(s+4) \times \frac{20}{60}$

So, $(s-4) \times \frac{30}{60}=(s+4) \times \frac{20}{60}$

30s-120=20s+80

10s=200

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Hence The speed of the boat is 20 km/hr

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The cartesian equation, y = 4, is equivalent to the polar equation, _____.

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This is how you would solve the question.

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