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vfiekz [6]
4 years ago
9

An athlete runs 8 miles in 50 minutes on a treadmill. At this rate, how long will it take the athlete to run 9 miles? *

Mathematics
2 answers:
I am Lyosha [343]4 years ago
8 0

Answer:

50 minutes = 50/60 hours = 0.8333333333 hours

8 miles / 0.8333333333 hours = 9.60 miles per hour

9 miles / 9.60 miles per hour =

0.9375 hours = 56.25 minutes




Step-by-step explanation:


wel4 years ago
4 0

Answer:

It would take 56 minutes for the athlete to run 9 miles.

Step-by-step explanation:

If an athlete runs 8 miles in 50 minutes, he is doing that in 5/6 or 0.83 of an hour. Therefore, using crossed multiplication, we can know the speed in miles per hour in which he was running:

0.83 = 8

1 = X

8 x 1 / 0.83 = 9.63

As he ran at 9.63 miles/h, we can use another crossed multiplication to know how much time would take him to run 9 miles:

9.63 = 1

9 = X

9 x 1 / 9.63 = 0.934/1 of an hour

0.934 x 60 = 56

It would take 56 minutes for the athlete to run 9 miles.

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Answer: B

Step-by-step explanation:

3 0
3 years ago
Given the circumference of a circle is 8π centimeters, calculate the area of the circle in terms of π.
arsen [322]

Answer:

16π cm²

Step-by-step explanation:

circumference = 2πr

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6 0
3 years ago
10. A circle has an arc with measure 80° and length 887. What is the<br> diameter of the circle?
zaharov [31]
The diameter of the whole circle is 2*pi*radius . The arc length is then 80/360*pi*radius*=88*pi
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=44*180/40
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SO BASICALLY THE ANSWER IS 396
3 0
3 years ago
Is the answer a or b and why?
Nataliya [291]

Answer:

B

Step-by-step explanation:

The area between the curves y = d and y = f(x), between the limits x=a and x=b, is:

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∫ᵈ (f(y) − a) dy

Answer A would give you the area between x = f(y) and the y-axis.  It needs to include the − a term to be correct.

7 0
3 years ago
Point Q' is the image of Q (4,-6) is under a translation by 1 unit to the right.
alexandr1967 [171]

Answer:

The coordinates of point Q' would be (5, -6) after being translated 1 unit to the right.

Step-by-step explanation:

4 0
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