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FrozenT [24]
3 years ago
14

Find the mean of the following data set.

Mathematics
1 answer:
nikklg [1K]3 years ago
5 0

8+5+15+12+10= 50 / 5 = 10

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Candice spent 5 1/4 hours doing her homework. Her brother, Ronald, spent 1/2 that number of hours doing his homework. How many h
Elden [556K]

Let

x-----> the number of hours that Candice spent doing her homework

y-----> the number of hours that Ronald spent doing his homework

we know that

x=5\frac{1}{4}\ hours

convert mixed number to an improper fraction

5\frac{1}{4}\ hours=\frac{5*4+1}{4}= \frac{21}{4}\ hours

so

x=\frac{21}{4}\ hours -------> equation A

y=\frac{1}{2}x ------> equation B

Substitute equation A in equation B

y=\frac{1}{2}*\frac{21}{4}=\frac{21}{8}\ hours

convert an improper fraction to a mixed number

\frac{21}{8}\ hours=2.625=2+0.625=2+\frac{5}{8}=2\frac{5}{8}\ hours

therefore

<u>the answer is the option B</u>

2\frac{5}{8}\ hours

5 0
3 years ago
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Free 50 points hurry up and i will mark brainliest
svetlana [45]
Yes please merry Christmas
8 0
2 years ago
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If circumference is 68 inched how many feet across ?
Korolek [52]

Answer:

5 2/3 I think

Step-by-step explanation:

divide 68 by 12

4 0
3 years ago
The local craft fair charges the vendors a flat rate of $20 plus $5 for each hour that they spend at the fair. If the vendor owe
Nonamiya [84]

Answer:He remained in the craft fair for 7 hours

Step-by-step explanation:

3 0
3 years ago
Find the area of the triangle that has a base of 4.2 mm and a height of 1.5 mm. 2.85 mm2 6.3 mm2 3.15 mm2 5.7 mm2
Advocard [28]

Answer: 3.15 mm²

Step-by-step explanation:

First, we multiply the height by the base: 4.2 x 1.5 = 6.3

But, since this is a triangle, we have to divide this number by 2: 6.3 / 2 = 3.15

Hope this helps you!

4 0
3 years ago
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