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OLga [1]
3 years ago
6

Write the missing familyfact5 x 16 = 8080 : 5 = 1616 x 5 = 80​

Mathematics
1 answer:
Fittoniya [83]3 years ago
5 0

Answer:

  80 ÷ 16 = 5

Step-by-step explanation:

The "family facts" seem to be related to the relationship ...

  5 × 16 = 80

One of the facts is generated from this one by reversing the order of the factors:

  16 × 5 = 80

The other two are found by dividing the equation by one or the other of the factors:

  16 = 80/5 . . . . . divide by 5

  5 = 80/16 . . . . . divide by 16

This last one is the one that is missing. It the form used in the problem statement, it is ...

  80 : 16 = 5

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This diagram shows a park's walking path in the shaded area.
VikaD [51]

Answer:

197.192

Step-by-step explanation:

62.8x3.14=197.192

3 0
2 years ago
The diagonal of a rectangle is 25 in. the width is 15 inches. what is the area of the rectangle? ​
klasskru [66]

Answer:

300

Step-by-step explanation:

The area of the rectangle can be calculated as follows

15√ 25^2 - 15^2

= 15√625-225

= 15√400

= 15 × 20

= 300

Hence the area of the rectangle is 300

4 0
2 years ago
The cube of a number equals 36 times that number.find the number.​
labwork [276]
Answer
The answer is 36.
Explanation:
Let the unknown number be x

x^3=x*36
or, x^3/x=36
or, x^2=36
or, x=6
.•. x=36
4 0
3 years ago
Read 2 more answers
(-6)^-1 multiply by x = 27^-1. find x
Len [333]

Answer:

-32 shall be multiplied to get the answer.

Step-by-step explanation:

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6 0
2 years ago
A paint manufacturer uses a machine to fill gallon cans with paint​ (1 galequals128 ​ounces). The manufacturer wants to estimate
kvasek [131]

Answer:

a) To determine the minimum sample size we need to use the formula shown in the picture 1.

E is the margin of error, which is the distance from the limits to the middle (the mean) of the confidence interval. This means that we have to divide the range of the interval by 2 to find this distance.

E = 0.5/2 = 0.25

Now we apply the formula

n = (1.645*0.80/0.25)^2 = 27.7 = 28

The minimum sample size would be 28.

b) To answer the question we are going to make a 90% confidence interval. The formula is:

(μ - E, μ + E)

μ is the mean which is 127. The formula for E is shown in the picture.

E = 0.80*1.645/√8 = 0.47

(126.5, 127.5)

This means that the true mean is going to be contained in this interval 90% of the time. This is why it doesn't seem possible that the population mean is exactly 128.

7 0
3 years ago
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