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11111nata11111 [884]
2 years ago
7

Joe would have earned $504 for working a 42 hour week but he was sick and missed 4 hours. How much did he earn?

Mathematics
2 answers:
Oksana_A [137]2 years ago
6 0

Answer:

<u>He earned $456</u>

Step-by-step explanation:

504/42=12

42-4=38

38*12=456

Good Luck!!!!

oksian1 [2.3K]2 years ago
5 0

Answer: $456

Step-by-step explanation:

$504/42 hr = 12 per hour

4 hours = $48

$504 - $48 =

= $456

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3 years ago
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Suppose that the regression for predicting weight (in pounds) from Height (in Select one answer inches) is given by Weight =-115
Nutka1998 [239]

Answer:

Option D)  I and II only                                    

Step-by-step explanation:

We are given the following in the question:

Regression equation:

w = -115 + 3.6h

where w is the weight in pounds and h is the height in inches.

Since the weight depends on height, height becomes the independent variable and weight becomes the dependent variable.

I. A person who is 61 inches tall will weigh 104.6 pounds

When h = 61,

w = -115 + 3.6(61) = 104.6

Thus, the given statement is true.

II. For every additional inch of height, the predicted weight will increase, on average, by 3.6 pounds.

If the height increases by 1 unit, then,

w(h+1) - w(h) = -115 + 3.6(h+1) - (-115 + 3.6(h))\\w(h+1) - w(h)  = 3.6(h+1-h)\\w(h+1) - w(h)  = 3.6

Thus, the given statement is correct.

III. The correlation between weight and height is negative.

No, the given statement is not correct as with increase in height the weight increases and with decrease in height the weight decreases.

Thus, the correct answer is

Option D)  I and II only

8 0
3 years ago
2x+8y = 6<br> 15x + 20y = 15
Likurg_2 [28]

Answer:

The solution is (0, 3/4)

Step-by-step explanation:

Please copy and share the instructions.  Here they are:  Solve the following system of linear equations.

Both of the equations can be reduced (simplified):

2x+8y = 6            =>  x + 4y = 3

15x + 20y = 15     => 3x + 4y = 3

Let's use the elimination by addition and subtraction method.  Multiply the first equation by -1, obtaining

                                 -x - 4y = -3

Add the second       3x + 4y = 3

equation to the

first.

We get:                       2x = 0.

Thus, x = 0.  Substituting 0 for x in the 1st original equation yields:

2(0) + 8y = 6.  Then y = 6/8, or y = 3/4.

The solution is (0, 3/4).

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3 years ago
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Colt1911 [192]

Answer:

false

Step-by-step explanation:

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2 years ago
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aniked [119]

Answer:

C=14pi cm

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Step-by-step explanation:

1) Circumference of a circle is 2piR and R=7cm

C=2pi(7)

C=14pi cm

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A=pi (7)^2

A=49pi cm^2

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3 years ago
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