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Lerok [7]
3 years ago
12

On his afternoon jog Chris took 42 minutes to run 3.75 miles. How many miles can he run in 90 minutes?

Mathematics
1 answer:
Troyanec [42]3 years ago
7 0

Answer:

8.03

Step-by-step explanation:

43 min = 3.75 miles

90 min = X

99 min×3.75÷42=8.03

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3(2+100)/4 which equation is solved for s
Naddika [18.5K]

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Step-by-step explanation:

3(2+100) would become 3x102 which is 306 and when you divide it by 4 it becomes 76.5

4 0
3 years ago
Which of the following is a perfect square<br> A. 13<br> B. 100<br> C. 127<br> D. 102
KiRa [710]
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At a certain bakery, the price of each doughnut is $1.50. Let the random variable D represent the number of doughnuts a typical
Solnce55 [7]

Using <em>statistical concepts</em>, it is found that the standard deviation of the probability distribution is of

s = 1.5(1.9) = 2.85

When a constant is multiplied to each data in a variable, both the <u>mean and the standard deviation</u> are multiplied by the constant.

In this problem, the standard deviation, which is the square root of the variance, is of:

\sigma = \sqrt{\sigma^2} = \sqrt{3.6} = 1.9

The price of each is of $1.5, hence:

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A similar problem is given at brainly.com/question/25718546

6 0
3 years ago
The graph shows how the mass of copper
Alex777 [14]

Answer: 8 1/4g/cm³

Step-by-step explanation:

Given the graph :

The rate of change in the mass of copper with respect to volume :

To obtain this, we find the slope or gradient of the graph:

Gradient = Δy / Δx = (y2 - y1) / (x2 - x1)

Drawing a right angled triangle on the anybpart of the line of best fit:

y2 = 40 ; x2 = 4.75 ; y1 = 16 ; x1 = 2

(y2 - y1) / (x2 - x1)

= (40 -16) / (4.75 - 2)

= 24 / 2.75

= 2400/275

= 8.727 g/cm^3

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6 0
3 years ago
(3+4)-(4/4-2)+(3(4+2)/3)
pychu [463]

Answer:

14

Step-by-step explanation:

7 0
2 years ago
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