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Delicious77 [7]
2 years ago
6

A jet boat is used to take canoers 200 miles upriver to their starting point. As the driver of the jet boat, Jeremy knows that i

t will take him 5 hours to get the canoers upstream, but only 4 hours to get the boat back downstream after dropping the canoers off, as long as he keeps the boat moving at a constant speed.
Mathematics
2 answers:
aivan3 [116]2 years ago
8 0
200/5 = 40 mph 200/4 = 50 mph Let x be the speed in still waters and y the speed of current. x + y = 50 x - y = 40 ADD 2x = 90 x = 45 mph ANSWER is C) 2) C
trasher [3.6K]2 years ago
3 0

Answer:

C. 45MPH

Step-by-step explanation: just trust me, I’m helping you

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[8] meaning. <br><br>what's the [ ] mean
kotykmax [81]
It changes it into negative 
6 0
3 years ago
Justify the steps taken to simplify 25×36×4
Marrrta [24]

Answer:

Hello dear

Step-by-step explanation:

25×36×4

25×4×36

100×36

3600

HOPE THIS HELPS YOU

4 0
3 years ago
Help please and how to did it cuz I’m confused
Brrunno [24]

Answer:

-125

Step-by-step explanation:

Step 1: Find g(-1)

g(x) = -5x²

g(-1) = -5(-1)²

g(-1) = -5(1)

g(-1) = -5

Step 2: Find g(-5)

g(-5) = -5(-5)²

g(-5) = -5(25)

g(-5) = -125

6 0
3 years ago
Did I pick the right answer for this question?
strojnjashka [21]

Answer:

I would agree with your answer

Step-by-step explanation:

Though it's kind of comparing apples to oranges as the basis is unclear

I'm ASSUMING both investments occurred during the same time period.

The first one appears to have a ROI of 305/800 = 0.38125

The second one is much muddier

If the investment is cashed out to zero and the total return to you is $900, then the ROI is (900 - 650) / 650 = 0.3846153. This is better than the first return, but just a little bit.

However, if the investment has not been cashed out and your $650 is actually still working and you have received $900 in interest or dividends, then the ROI is 900/650 = 1.384615... which is more than 3.6 times greater return than the first option.

6 0
2 years ago
How many students rank themselves as introverts? Demonstrate your work.
Goshia [24]

Answer:

36 introverts

Step-by-step explanation:

Total number of adults in the survey = 120

Ratio of introverts to extroverts = 3:7

Number of introverts = ratio number of introverts / ratio total × 120

Ratio number of introverts = 3

Ratio total = 3 + 7 = 10

Number of introverts = 3/10 × 120

= 36

8 0
2 years ago
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