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Lorico [155]
2 years ago
9

A horse 64 feet from the center of a merry-go-round makes 27 revolutions. In order to travel the same distance, how many revolut

ions would a horse 16 feet from the center have to make?
GUYS, PLEASE HELP URGENTLY!! THNX!
BTW THE ANSWERS:6.75 and 1 1/5 are wrong! =)
Mathematics
1 answer:
shutvik [7]2 years ago
5 0

Answer:

108

Step-by-step explanation:

64*27=1728

1728/16=108

or

64/16=4

4*27=108

hope this helps!

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What solution do 2x2 - 13x + 21 = 0 and 2x2 + 9x - 56 = 0 have in common? Round your answer to the nearest tenth if necessary.
lys-0071 [83]
So if we want to know the common solution(s) to a system of 2 equations, So we can just set both equations equal to each other and solve for the x value(s). That’s where I start below;

2x^2-13x+21 = 2x^2+9x-56
2x^2 cancels out and moving everything to one side and anything with an x variable to the other side we have then;
-22x=-77
22x=77 by cancelling the negative signs
x=77/22 therefore x=7/2 or 3.5

Hope this helps you. Any questions please ask.
4 0
3 years ago
The engine torque y (in foot-pounds) of one model of car is given by y=−3.75x2+23.2x+38.8, where x is the speed (in thousands of
Stels [109]

Answer:

Step-by-step explanation:

If the engine torque y (in foot-pounds) of one model of car is given by y=−3.75x^2+23.2x+38.8

The engine speed is at maximum if dy/dx = 0

dy/dx = -2(3.75)x+23.2

dy/dx = -7.5x + 23.2

since dy/dx = 0

0 =  -7.5x + 23.2

7.5x = 23.2

x = 23.2/7.5

x = 3.093

Hence the maximum torque is 3.09 rev/min

8 0
2 years ago
A medication states that the odds of having an allergic reaction are 1 in 50. What is that probability states as a percent?
Fittoniya [83]
<h2>Answer:</h2>

<u><em>As a percent, the odds of having an allergic reaction would be 2%.</em></u>

This is because 1 in 50 of a chance, is equal to 1/50, and to make this a percent out of 100, just multiply both parts of the fraction by 2.

None of the choices equal 1/50, so let's just make it a percentage anyway.

1/50 ---> 0.02

0.02 ---> 2%

<em>The answer is 2%, or 1/50 as a fraction.</em>

3 0
3 years ago
Find x and y in the figure​
xxTIMURxx [149]

Answer:

therefore angle Y will be equal to angle X by vertically opposite angle as by taking all the angles inside the traingle will be equal to Y so Y = X = 60°

5 0
3 years ago
Finn had earned 100 points so far this year in math class. After the
Tju [1.3M]

Answer:

52%

Step-by-step explanation:

3 0
2 years ago
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