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AlladinOne [14]
3 years ago
7

Hey yall can come here for the fastest brainliest! But first answer it correctly! cuz it s a easy question plus you get many poi

nts!!!!!!
A conveyor belt carries supplies from the first floor to the second floor, which is 39 feet higher. The belt makes a 60° angle with the ground. How far do the supplies travel from one end of the conveyor belt to the other to the nearest foot? If the belt moves at70 ft./min., how long does it take the supplies to move to the second floor to the nearest tenth of a minute?
(1 po
68 ft.; 1.0 min.
55 ft.; 0.8 min.
45 ft.; 0.6 min.
23 ft.; 0.3 min.
Mathematics
1 answer:
RideAnS [48]3 years ago
5 0

Answer:

3rd option is correct.....

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The diagram shows figures that are squares and figures that are rectangles.
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Convert 6 and 3/5 to an improper fraction.
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Korey kept track of the number of miles he ran each week for five weeks. The median number of miles he ran during the five weeks
ivolga24 [154]

Options:

A. 18, 20, 20, 22, 25

B. 20, 20, 20, 25, 25

C. 16, 19, 21, 22, 22

D. 20, 20, 21, 22, 22

Answer:

A. 18, 20, 20, 22, 25

Step-by-step explanation:

Required

Which list has a mean of 21 and median of 20

Each of the list have 5 numbers and they've all been sorted.

The median is the number at the 3rd position (i.e. the middle number)

So, list C and D are out because they do not have a median of 20.

Next, calculate the mean of lists A and B

\bar x = \frac{\sum x}{n}

A. 18, 20, 20, 22, 25

\bar x = \frac{18 + 20 + 20 + 22 + 25}{5}

\bar x = \frac{105}{5}

\bar x = 21

B. 20, 20, 20, 25, 25

 \bar x = \frac{20 + 20 + 20 + 25 + 25}{5}

\bar x = \frac{110}{5}

\bar x = 22

Only list A has a median value of 20 and a mean value of 21

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