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astraxan [27]
3 years ago
14

An airplane flies 750 miles due west in 1 1! 2hours and 750 miles due south in 2 hours. what is the average speed of the airplan

e
Mathematics
1 answer:
LiRa [457]3 years ago
3 0
Use the Pyth. Theorem to calculate the total distance flown by the plane in 3 1/2 hours:

d = sqrt(750^2 + 750^2) = 750sqrt(2) miles

Now divide this distance by the total time (3 1/2 hours):

750sqrt(2) miles
---------------------- = 303 miles per hour average
    3.5 hours
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Joseph needs 345 cement blocks to build a wall 40 cm thick. He needs 205 cement blocks to build a wall 25 cm thick. Each block c
IrinaVladis [17]

9514 1404 393

Answer:

  $105

Step-by-step explanation:

The thicker wall takes 345 -205 = 140 more blocks. Each of those costs $0.75, so the added blocks will cost ...

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7 0
3 years ago
A right circular cylinder has a diameter of 16 mm and a height of 12 mm. what is the volume of the cylinder in terms of π?
valina [46]
Volume of the cylinder = hr²π

diameter = 2 × radius
16 = 2 × r
r = 16/2
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8 0
3 years ago
Read 2 more answers
PLEASE HELP!! Trevor is writing a paper that must be 50,000 words long. He had already written 23,210 words. Write an inequality
almond37 [142]

Answer:

50,000 ≤ 23,210 + 5x

x = Average number of words per week

Step-by-step explanation:

Start off with 50,000 because that's how many words the paper needs to have.

Use "≤" because Trevor needs to write at least 50,000 words. (He can write more).

Trevor already wrote 23,210 words plus x words per week for 5 weeks.

(Solving for x will help you find the average number of words Trevor must write per week for 5 weeks).

5 0
3 years ago
what expression represents the following problem: A glass holds 1/ 4 liters of liquid. How many glasses of liquid are in 5 liter
maxonik [38]
20... 5÷ 1/420/ \frac{1}{4}


3 0
3 years ago
I'm not sure how to solve please help
wel
Follow these step:
So you want to start with adding the 5 to the other side of the equation so it would become 8=g/4
Then you want to multiply each side by 4 so it becomes 32=g

The answer is g=34
I hope this helps :)
8 0
3 years ago
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