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xxMikexx [17]
3 years ago
6

During a checker game there are 16 pieces left. the ratio of black to red is 3:5. How many black pieces are left on the board?

Mathematics
1 answer:
olganol [36]3 years ago
6 0
We know that there are 16 pieces left and that the ratio is 3 : 5. The ratio teels us there are 8 "parts" inside (because 3 + 5 = 8), so now we may just divide 16 by 8 to find out how much is one such "part":

16 ÷ 8 = 2

Now we can see that one "part" of the ratio is for 2 pieces. So if the ratio of black to red pieces is 3 : 5, then there are 3 * 2 = 6 red pieces and <u>5 * 2 = 10 black bieces</u>.
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We know that area of the square is 141 square feet. Therefore, we can figure out the dimension of square using formula for area as shown below:

Area=a^{2}\\141=a^{2}\\a=\sqrt{141}=11.874

We know that fencing is used along the sides of the square. Therefore, amount of fencing required will be equal to perimeter of square.

Hence, we can write:

\text{Amount of fencing}=\text{Perimeter of square}

\text{Amount of fencing}=4a=4(11.874)=47.496

Upon rounding to nearest foot, we get the amount of fencing required as 48 feet.

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3 years ago
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hram777 [196]

Answer:

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Step-by-step explanation:

First, order the numbers in the given set from least to greatest:

8 , 9 , 9 , 10 , 12 , 14 , 15 , 15

The median is the number found in the middle of the given set. If the amount of numbers in the set are even (as in this case), then you will find the mean of the two middle numbers.

In this case, the middle numbers are 10 & 12:

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(10 + 12)/2 = (22)/2 = 11

11 is your median.

~

5 0
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Step-by-step explanation:

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Step-by-step explanation:

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