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pashok25 [27]
3 years ago
6

Matt can walk 500 m from his home on King Street, and then 900m along Queen Street to go to his school. He can also walk across

a diagonally across a park from his home to his school. Assuming King Street and Queen Street meet at right angles, how far does he walk across the park to go to school?
Mathematics
1 answer:
brilliants [131]3 years ago
7 0

Answer:

He walks 1030 meters if he walks across the park.

Step-by-step explanation:

In order to solve this question we will need to know that c^{2} = a^{2} + b^{2} (were c is the length of the hypotenuse (the diagonal line) of a right angle triangle, and a and b are the legs (the sides that form a right angle). So them means that.....

Let "c" be the distance he will need to walk if he was going to go through the park

Let "a" be the distance he walks on King Street

Let "b " be the distance he walks on Queen Street, then.....

c^{2} = a^{2} + b^{2}

c = \sqrt{a^{2} + b^{2} }

(Now plug in the values of a and b and get.....)

c = \sqrt{500^{2} + 900^{2}  }

c = \sqrt{1060000 }

c = 1029.563014............

So I would assume that you have to round to the nearest meter. And as a result we get 1030 meter.

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John has a cylindrical propane tank that measures 8" in diameter and 8" tall If John
kirza4 [7]

Answer:

2 times as large

Step-by-step explanation:

For the original cylinder, we can say that the volume of a cylinder is equal to V= πr²h. For this cylinder, we can say that  V = π * radius² * height. The radius is equal to 1/2 of the diameter, so the original radius is 8/2 = 4. Therefore, the volume of the original cylinder is V = π * radius² * height = π * 4² * 8 = π * 16 * 8 = π * 128

For the new cylinder, "twice as wide" means that the diameter is twice as big as the original one. Half the height means that the height is halved. The new diameter is therefore 8 * 2 = 16 (meaning that the new radius is 16/2=8) while the new height is 8/2 = 4. The new volume is thus

V = π * radius² * height = π * 8² * 4 = π * 64 * 4 = π * 256

To see how much larger the new tank volume is, we can divide (new tank volume) by (old tank volume), resulting in

π * 256 / (π *128) = 2

8 0
3 years ago
Sweety’s mother is 12 years more than twice Sweety’s age. After 8 years, she will be 20 years less than three times Sweety’s age
Anton [14]

Answer: 44

Step-by-step explanation:

Let your age be x.

Then your mother's age will be 2x + 12.

After 8 years,

Your age will be x + 8.

Your mother's age will be 3(x + 8) - 20 = 3x + 24 - 20 = 3x + 4.

This is equal to 2x + 12 + 8 = 2x + 20

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= x = 16

7 0
3 years ago
Read 2 more answers
May I also have an explanation?
Ilia_Sergeevich [38]
First start with the squares we know that they have four equal sides. This means that all of the square sides are 10.
3 0
3 years ago
Mr. Simpson spent five hours working on his lawn if you spent 25% of the time edging the flowerbeds how much time did he spend e
cricket20 [7]
He spend one hour and twenty five minutes (1:25)
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4 years ago
How to solve 5h+7=17
Alex777 [14]
If you are trying to find h, then its very simple.
So lets see 5+7=12
So 17-12=5
So lets check to see if h=5
5+5+7
5+5=10+7=17 so h is 5. :)
5 0
3 years ago
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