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3 years ago

PLS HELP! (THE QUESTION IS A PICTURE CLICK ON THE QUESTION FIRST)

Mathematics

2 answers:

Natalija [7]3 years ago

7 0

Answer:

Step-by-step explanation:

B.28.1

KengaRu [80]3 years ago

4 0

Answer:

It's BBBBBBBBBBBBBBBBB

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What is the constant of proportionality for the equation y=1 1/2x?

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2 years ago

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3 years ago

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

s=20

Hence The speed of the boat is 20 km/hr

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2 years ago

You have 10 green marbles, 30 white marbles, and 25 black marbles. What’s the probability of NOT selecting a green marble?

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Answer

Its around 30% but their is about 55 other marbles

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3 years ago

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