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DochEvi [55]
3 years ago
15

Divide 40x/ 64y by 5x/ 8y A. 1 B. 3/4 C. 25x^2/ 64y^2 D. 25/64

Mathematics
2 answers:
CaHeK987 [17]3 years ago
6 0
40x/64y / 5x/8y
K C F
40x/64y * 8y/5x

320xy / 320xy

1 <---------- answer
Mademuasel [1]3 years ago
5 0
(40x/64y)/(5x/8y)

(40x/64y)(8y/5x)

320xy/(320xy)

1
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Please help me answer this question.
Wittaler [7]

Answer:

64

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7 0
2 years ago
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Help pls<br> 4 1/5 of 8 2/10 is what number ?
soldi70 [24.7K]

Answer:

34.44 or 34 11/25

Step-by-step explanation:

4 1/5 ⋅ 8 2/10 = ?

21/5 ⋅ 82/10 = ?

21/5 ⋅ 41/5 = 861/25

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8 0
3 years ago
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a paper airplane can be made out of two different pieces of paper: a circular piece 10 inches wide and a square piece 11 inches
madreJ [45]
Compare the areas of the 2 different pieces of paper.

For the circle, the area is A=pi * r^2, which works out to A = pi(5 inches)^2.

For the square, the area is A = s^2, where is the side length, which here is 11 inches.

Finish these calculations, and then compare your two areas.  Which is the larger?
5 0
2 years ago
The director of the library calculates that 29% of the library's collection is checked out. If the director is right, what is th
marusya05 [52]

Answer:

The probability that the proportion of books checked out in a sample of 412 books would differ from the population proportion by less than 4% is P=0.9255.

Step-by-step explanation:

The population's proportion is \pi=0.29

If we take a sample of 412 books (n=412), we have a standard deviation of the sampling distribution of:

\sigma_M=\sqrt{\frac{\pi(1-\pi)}{n}}=\sqrt{\frac{0.29*0.71}{412}}=\sqrt{0.0005} =0.0224

We have to calculate the probabilty that the sample proportion will be between 0.25 and 0.33.

z_1=(0.25-0.29)/0.0224=-0.04/0.0224=-1.7857\\\\z_2=1.7857\\\\\\P(0.25

8 0
3 years ago
The marks obtained by students are 10, 13, 12, 15, 25, 30, 20, 35, 40, 18. Calculate the median mark. ​
antoniya [11.8K]

Answer:

i think its 30

Step-by-step explanation:

3 0
2 years ago
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