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Allushta [10]
3 years ago
12

A square playground is surrounded by a sidewalk on all sides. The sidewalk is 2n+3 yards along each side. The sidewalk is 0.5 ya

rd wide. What is the perimeter of the playground? Write two equivalent expressions for the perimeter of the playground.
Mathematics
1 answer:
soldi70 [24.7K]3 years ago
4 0

Answer: It  can be calculated by using the formula of perimeter and by adding four sides

1) Perimeter= 2(L+B)= 8n+12

2) Perimeter= L+L+L+L= 4L= 8n+12

Step-by-step explanation:

As it is a square playground all its sides are equal

Perimeter of the sidewalk = 2(L+B)= 2(2n+3+0.5)= 2(2n+3.5)= 4n+7

Perimeter of the square playground= <em><u>2(L+B)</u></em>= 2(2n+3+2n+3)

<em>2(4n+6)= 8n+12-------------------------A</em>

Perimeter of the square playground<u><em>= L+L+L+L=4L</em></u>  42n+3+2n+3+2n+3+2n+3=<u><em>4(2n+3)= 8n+12------------------------B</em></u>

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Lemur [1.5K]

Answer: $4110.8 (more likely - 95% sure) or $2,107 (less likely)

Step-by-step explanation: It could be $4110.8 because you have the take the total they made and subtract is from the cost of the toys ($7,230-$2,450=$4,780). Then you have to take the result of that and get 14% of it, then subtract that from the $4,780 amount. Then you get the final answer which is $4110.8.

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However, it could also be $2,107 because the question itsn't that clear in the second sentence. It could be saying that $2,450 is the price of the toys (which is what I assumed above), or that it is the profit that the $2,450 (which I used below). I think that the above answer is more likely because if not then the first number would never be used. Anyways here is the second way it could be.

Step-by-step explanation: It could be $2,107 because you take the profit ($2,450) and get 14% of it, then subtract that from the $2,450 amount. Then you get the final answer which is $2,107.

If I was you, I would do the first one ($4110.8) because I really think it is that one. I just put the other one here just in case.

6 0
3 years ago
What is the inverse of the function 9y - 6 = 3x ?
IgorC [24]

Answer:

Option (2)

Step-by-step explanation:

Given function is,

9y - 6 = 3x

y = \frac{3x+6}{9}

To find the inverse of the given function,

1). Substitute x in place of y and y in place of x.

x = \frac{3y+6}{9}

2). Now we have to solve this equation for the value of y.

9x = 3y + 6

3y = 9x - 6

y = (3x - 2)

Therefore, inverse of the given function is y = (3x - 2)

Option (2) will be the answer.

8 0
3 years ago
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Answer:

Step-by-step explanation:

Nose amigo si supiera te ayudaría mucho

3 0
3 years ago
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Any help would be appreciated! :)
ikadub [295]

Answer:

-7, then -13, then -19

Step-by-step explanation:

Plug in x values to get y.

y = -2(0) - 7

y = 0 - 7

y = -7

y = -2(3) - 7

y = -6 - 7

y = -13

y = -2(6) - 7

y = -12 - 7

y = -19

Hope this helps. :0)

7 0
2 years ago
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krek1111 [17]

Answer:

Step-by-step explanation:

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1.p(-3,2) ,in the second quadrant

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in the clockwise it is rotation of 270° about the origin.

2.

Q(-4,-5) is in 4th quadrant.

Q(4,5) is in 1st quadrant.

so it is 180° rotation in the clockwise direction.

3.

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R(7,-1) is in 4th quadrant.

Hence it is 90° rotation about the origin in clockwise direction.

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