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Tanzania [10]
4 years ago
11

Using distributive property-2(n+9)

Mathematics
1 answer:
Jlenok [28]4 years ago
3 0

Answer: -2n + -18

Explanation: Let's simplify this problem using the distributive property.

The first thing we want to do is to distribute or multiply the -2 by each of the terms inside the set of parentheses.

So we get -2 (n) + -2 (9) and this simplifies to -2n + -18.

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How many flowers, spaced every 6 inches, are needed to surround a circular garden with a 10 foot radius?
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To solve this problem you must apply the proccedure shown below:

1. You must calculate the perimeter of the circle:

The radius of the circle in inches is:

radius=\frac{(10ft)(12in)}{1ft}=120in

P=2\pi(radius)\\  P=2\pi(120in)\\ P=753.98in

2. Now, you must divide the perimeter by the space between each flower to find the number of flowers needed, which you can call x:

x=\frac{753.98in}{6in}=125.6=126

The answer is: 126 flowers.

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