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2 years ago

8

Hillsboro Middle School has 714 students. Joanna surveys a random sample of 34 students and finds that 9 of them play a musical

instrument. How many students at the school are likely to play a musical instrument?

1 answer:

Lilit [14]2 years ago

3 0

Answer:

about 189

Step-by-step explanation:

because out of 34 is 9 so 714 divided by 34 is 21 and 21 multiply by 9 is 189.

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AURORKA [14]

Answer:

3.5 square cm

Step-by-step explanation:

$Area \: of \: both \: squares \\ = {2}^{2} + {3}^{2} \\ = 4 + 9 \\ = 13 \: {cm}^{2} \\ \\ Area \: of \: both \: right \: \triangle s \\ = \frac{1}{2} \times (2 + 3) \times 2 + \frac{1}{2} \times3 \times 3 \\ = 5 \times 1+ 1.5 \times 3 \\ = 5 + 4.5 \\ = 9.5 \: {cm}^{2} \\ \\ Area \: of \:shaded \: region \\ = Area \: of \: both \: squares\\ - Area \: of \: both \: right \: \triangle s \\ = 13 - 9.5 \\ \purple { \boxed{ \bold{Area \: of \:shaded \: region = 3.5 \: {cm}^{2} }}}$

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3 years ago

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ale4655 [162]

Answer:

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Step-by-step explanation:

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3 years ago

15/100,3/10,45/100,6/10,75/100 find the next pattern

ad-work [718]

From the given series:
<span>15/100,3/10,45/100,6/10,75/100
The common difference=3/10-15/100=3/20
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thus plugging in our values,we obtain explicit formula for the series as:
an=15/100+(n-1)3/20
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Thus the answer is: 3/20n</span>

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2 years ago

Margo’s Dad offers to give her 5 cents on sunday. Then for each day of the week, he offers to give her 5 times the amount from t

goblinko [34]

Answer:

Step-by-step explanation:

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2 years ago

Read 2 more answers

20 POINTS IF YOU SOLVE!

Orlov [11]

Question 1: D

Question 2:D

Question 3: C

Question 4: A

Question 5: D

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3 years ago