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notsponge [240]
3 years ago
7

Nine times the sum of a number and two is forty five. What is the number?

Mathematics
1 answer:
kondaur [170]3 years ago
6 0

Answer:

3

Step-by-step explanation:

9 x (N + 2)   = 45

9N + 18       = 45

9N              = 27  

N                 = 3  

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The ice cream shop offers 31 flavors. you order a double scoop cone how many different ways can the clerk put the ice cream on t
Lynna [10]

Answer:

465

Step-by-step explanation:

Since we are looking for the the number of combinations to have 2 different flavors in the ice cream, we can use the formula for combination.

_{n}C_{k}=\dfrac{n!}{k!(n-k)!}

Our variables are:

n = 31

k = 2

_{31}C_{2}=\dfrac{31!}{2!(31-2)!}

_{31}C_{2}=\dfrac{31!}{2!29!}

_{31}C_{2}=\dfrac{31!}{2!29!}

_{31}C_{2}=465

The number of possible combinations of having 2 different flavors out of 31 different flavors is 465.

6 0
3 years ago
PLEASE HELP ME WITH THIS
SSSSS [86.1K]

Answer:

1

Step-by-step explanation:

angles on a straight line are 180 so u do 180 minus 47 gives u 133

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I believe it is 144 dollars
3 0
3 years ago
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Circle theorem <br> This is a very easy question but i just can't seem to be able to answer it
xxMikexx [17]

The measure of <FCD is 77 degrees

<h3>Circle geometry</h3>

From the given diagram, we have the following:

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Given the following parameters

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Substitute into the formula:

m<FCD + 90 +13 = 180 degrees

m<FCD = 180 - 103

m<FCD = 77 degrees

Hence the measure of <FCD is 77 degrees

Learn more on circle geometry here; brainly.com/question/24375372

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