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2 years ago

Helpppppppppppppppppp NO LINKS

Mathematics

2 answers:

pishuonlain [190]2 years ago

5 0

Hello Kittyhacker14! :) I am Grace Rosalia, and I hope my answer wil help you!

First, we must calculate 15% of 300.

We do this like this:

300:100=3

Now we multiply it by 15:

3*15=45

So 15% of 300 is 45. (that's how many students arrive on foot)

Now we must compute how many students arrive by bus (it's done like that:

300*3/5=180 (that's how many students arrive by bus)

Now we must calculate how many students arrive by car.

That's how it's done:

300-180-45=75

So 75 students arrive by car.

zubka84 [21]2 years ago

3 0

15% of 300 = 45 ( foot )
300 x 3/5 = 180 ( bus )
therefore, students arrive by car = 300-180-45= 75

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The question is an illustration of perimeters.

The amount of patio to remove to install the pool is 8 feet.

From the question, we have:

$\mathbf{Length\ of\ the\ pool = 8}$

$\mathbf{Length\ of\ walkway = 1}$

The perimeter of the patio is:

$\mathbf{P_p = 4 \times Length\ of\ the\ pool}$

$\mathbf{P_p = 4 \times 8}$

$\mathbf{P_p = 32}$

A 1ft walkway means that;

1ft would be subtracted from both sides of the patio before installing the pool

So, the perimeter of the patio in terms of the length of the pool is:

$\mathbf{P_p = 4 \times (x +2)}$

Equate both expressions

$\mathbf{P_p = P_p}$

$\mathbf{4 \times (x +2) = 32}$

Divide both sides by 4

$\mathbf{x +2 = 8}$

Subtract 2 from both sides

$\mathbf{x = 6}$

So, the perimeter of the pool is:

$\mathbf{P_{pool} = 4 \times 6}$

$\mathbf{P_{pool} = 24}$

The amount of patio to remove is:

$\mathbf{Amount = P_p - P_{pool}}$

So, we have:

$\mathbf{Amount = 32 - 24}$

$\mathbf{Amount = 8}$

Hence, 8ft of the patio would be removed to install the pool

See attachment for illustration