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Brilliant_brown [7]
3 years ago
5

The 7th graders at Sunview Middle School were helping to renovate a playground for the kindergartners at a nearby elementary sch

ool. City regulations require that the sand underneath the swings be at least 15 inches deep. The sand under both swing sets was only 12 inches deep when they started.
The rectangular area under the small swing set measures 9 feet by 12 feet and required 40 bags of sand to increase the depth by 3 inches. How many bags of sand will the students need to cover the rectangular area under the large swing set if it is 1.5 times as long and 1.5 times as wide as the area under the small swing set? Show your work or explain your thinking.
Mathematics
2 answers:
stira [4]3 years ago
7 0

Answer: 114.8 square feet

Step-by-step explanation:

VARVARA [1.3K]3 years ago
5 0

Answer:

90 bags of sand

Step-by-step explanation:

9 feet × 1.5 = 13.5

12 feet × 1.5 = 18

Large pit area= 13.5 × 18 = 243ft squared

The small pit area=9 × 12 = 108ft squared

243 / 108 = 2.25 times larger

This means the large pit needs 2.25 times more sand.

40 × 2.25 = 90 bags of sand

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WILL GIVE BRAINLY
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Answer: 8%

Step-by-step explanation: I BELIVE that the way you figure these things if devision, so, 80/10=8 :)

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4 years ago
Which graph shows a function with a zero of –5?
Vedmedyk [2.9K]

Answer:

Look for the y-intercept where the graph crosses the y-axis. Look for the x-intercept where the graph crosses the x-axis. Look for the zeros of the linear function where the y-value is zero.

Step-by-step explanation:

8 0
3 years ago
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Write using only positive exponents. 16x^4z^4/36x-2yz^0
kolbaska11 [484]

Answer:

Step-by-step explanation:

16x^4y^-3z^4 / 36x^-2yz^0

16x^4y^-3z^4 = 16x^4z^4/y^3

36x^-2yz^0 = 36x^-2y(1) =36x^-2y = 36y/x^2

16x^4y^-3z^4 / 36x^-2yz^0

= (16x^4z^4/y^3) / (36y/x^2)

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or another way

fist multiply it out

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now differentiate knowing d/dx(x^n) = n x^(n-1)

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simplify to get

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If this is what your looking for please give me brainiest, i have done this problem in the past so i know how to solve it :)

5 0
3 years ago
What is the error in -3.7 +-0.25= - .62
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What does communitive property mean
madreJ [45]
What you meant was the "commutative" property.

So we can say that when adding:

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Example:

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Example:

4 - 1 ≠ 1 - 4

a - b ≠ b - a

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