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uranmaximum [27]
3 years ago
5

Joe and maggie are working at Mcdonalds. Joe makes $8.50 per hour while Maggie makes $9.00 per hour. How much will they both mak

e altogther if they work x number of hours
Mathematics
2 answers:
Elina [12.6K]3 years ago
7 0

8.5x + 9x = y

That is because you don't know how many hours they worked, so you can't how much money they made.  

If you plugged in 4 hours for the x's you'll do something like this:

8.5 (4) + 9 (4) = y

34 + 36 = y

70 = y

That is how you would do it if you have the number of hours they worked.

Marina86 [1]3 years ago
3 0

Answer:

m = 8.50 x + 9x

Step-by-step explanation:

Hi, to solve this we have to write an expression where:

x : hours worked

m : money earned by Joe and Maggie

Joe makes $8.50 per hour, so if he works x hours he earns $8.50 (x) .

Maggie makes $9 per hour, so if she works x hours she earns $9 (x) .

If they work x number of hours, they both will make:

m = 8.50 x+ 9x  

Feel free to ask for more if it´s necessary or if you did not understand something.

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steposvetlana [31]

Answer:

5.10,3.6,8.12 is the surface area of prism

Step-by-step explanation:

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7 0
3 years ago
Is 4 18/12 equal to 5 6/12?
Tom [10]

Answer:

Yes, 4 18/12 is equal to 5 6/12.

Step-by-step explanation:

Given that

4 18/12 = 5 6/12

11/2 = 11/2

Yes both are equal.

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3 years ago
Help plz:)))I’ll mark u Brainliest !
seropon [69]

Answer:

A= 18.4

Step-by-step explanation:

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4 0
3 years ago
Read 2 more answers
The mean annual cost of an automotive insurance policy is normally distributed with a mean of $1140 and standard deviation of $3
DerKrebs [107]

Using the normal distribution, it is found that the probabilities are given as follows:

a) 0.8871 = 88.71%.

b) 0.0778 = 7.78%.

c) 0.8485 = 84.85%.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean \mu and standard deviation \sigma is given by:

Z = \frac{X - \mu}{\sigma}

  • The z-score measures how many standard deviations the measure is above or below the mean.
  • Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.
  • By the Central Limit Theorem, the sampling distribution of sample means of size n has standard deviation s = \frac{\sigma}{\sqrt{n}}.

The parameters in this problem are given as follows:

\mu = 1140, \sigma = 310, n = 16, s = \frac{310}{\sqrt{16}} = 77.5

Item a:

The probability is the <u>p-value of Z when X = 1250 subtracted by the p-value of Z when X = 1000</u>, hence:

X = 1250:

Z = \frac{X - \mu}{\sigma}

By the Central Limit Theorem

Z = \frac{X - \mu}{s}

Z = \frac{1250 - 1140}{77.5}

Z = 1.42

Z = 1.42 has a p-value of 0.9222.

X = 1000:

Z = \frac{X - \mu}{s}

Z = \frac{1000 - 1140}{77.5}

Z = -1.81

Z = -1.81 has a p-value of 0.0351.

0.9222 - 0.0351 = 0.8871 = 88.71% probability.

Item b:

The probability is <u>one subtracted by the p-value of Z when X = 1250</u>, hence:

1 - 0.9222 = 0.0778 = 7.78%.

Item c:

The probability is the <u>p-value of Z when X = 1220</u>, hence:

Z = \frac{X - \mu}{s}

Z = \frac{1220 - 1140}{77.5}

Z = 1.03

Z = 1.03 has a p-value of 0.8485.

0.8485 = 84.85% probability.

More can be learned about the normal distribution at brainly.com/question/4079902

#SPJ1

3 0
2 years ago
Plzzzz helppppp again
Rina8888 [55]
This is the answer for you problems

5 0
3 years ago
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