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tresset_1 [31]
3 years ago
8

A jet plane traveling at a constant speed goes 1200 mi with the​ wind, then turns around and travels for 1000 mi against the win

d. If the speed of the wind is a constant 50​ mph, and the total flight took 4​ hours, find the speed of the plane. Round your answer to the nearest​ tenth, if necessary.
Mathematics
1 answer:
givi [52]3 years ago
4 0

Answer:

Avg speed 550 miles per hour

Step-by-step explanation:

with the wind 1200 miles traveling

1200/(550+50) = 2 hours

Against the wind

1000/(550-50) = 2 hours

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The height of an equilateral triangle is 13 feet. The triangles area is 39 feet squared. What is the perimeter of the triangle?
cluponka [151]

Answer:

It is 6ft

Step-by-step explanation:

The formula is

A= 1/2bh so now you would substitute

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78= 13h

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8 0
4 years ago
A newspaper reporter wrote an article about a recent football game 8749 people attended the game but the reporter rounded the nu
wlad13 [49]

Answer:

your answer would be .

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3 years ago
A company find that 4 1/4 % of the tyres are defective. The company made 28,000 tyres. How many tyres were defective?
Bumek [7]

Answer:

595 pairs of tyres are defective.

Step-by-step explanation:

4.25×28000

____

100

0.0425×28000

1190 Total no. of defective tyres

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3 0
3 years ago
The weight of football players is normally distributed with a mean of 200 pounds and a standard deviation of 25 pounds.Refer to
Dafna11 [192]

Given that

the weight of football players is distributed with a mean of 200 pounds and a standard deviation of 25 pounds.

And we need to find What is the minimum weight of the middle 95% of the players?

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Using the Empirical Rule, 95% of the distribution will fall within 2 times of the standard deviation from the mean.

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So the minimum weight = 200 pounds - 50 pounds = 150 pounds

Hence the final answer is 150 pounds.

3 0
1 year ago
Find the x and y intercepts of the graph of the function
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Answer:

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The 2 funtions above the x axis do not intercept with the y-axis or the x-axis. They just hover above it, but never atcually touch it.

The function bellow the x-axis only intercepts the y-axis at 0,0

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