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ELEN [110]
4 years ago
6

The school band will sell pizzas to raise money for new uniforms. the supplier charges $100 plus $4 per pizza. If the band membe

rs sell the pizzas for $7 each, how many pizzas will they have to sell to make a profit?
Mathematics
2 answers:
Vesna [10]4 years ago
8 0
I think it is a t least 20 dollars
evablogger [386]4 years ago
7 0
7 x > 4 x + 100
7 x - 4 x > 100
3 x > 100
x > 100 : 3
x > 33.33
Answer: they have to sell 34 pizzas to make a profit.
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Three potential employees took an aptitude test. Each person took a different version of the test. The scores are reported below
emmasim [6.3K]

Answer:

Tera had the higher z-score, so she should be offered the job.

Step-by-step explanation:

Z- score:

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

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

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem:

Whoever has the higher z-score should get the job.

Brittany:

Scored 88.3, mean 63.1, standard deviation 14. So

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

Z = \frac{88.3 - 63.1}{14}

Z = 1.8

Alissa:

Scored 236.5, mean 219, standard deviation 25. So

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

Z = \frac{236.5 - 219}{25}

Z = 0.7

Tera:

Scored 7.75, mean 6.66, standard deviation 0.5. So

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

Z = \frac{7.75 - 6.66}{0.5}

Z = 2.18

Tera had the higher z-score, so she should be offered the job.

3 0
4 years ago
I need help please. It’s a quiz!
mariarad [96]

charlie and sons- 75 x 100=7500 + 1000= $8500

home dreams- 80 x 100=8000 + 800= $8800

Dream house is more expensive

Brainliest Please!

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2 years ago
Classify these angles,
Reptile [31]

Step-by-step explanation:

I think vertical is the correct answer.

3 0
3 years ago
Solve for x and y please
kaheart [24]

Answer:

y < 3 - 3x/2. x < 2 - 2y/3.

Step-by-step explanation:

8 0
4 years ago
The volume of 100 drops of a liquid is 0.1 fluid ounce.<br><br> What is the volume of 1000 drops?
Ket [755]

Hey there!

100 drops of the liquid is 0.1 fluid ounces.

1,000 is equal to 10 x 100.

To find the volume of 1,000 drops of liquid, we must multiply the volume of 100 drops, which is 0.1, by 10.

0.1 x 10 = 1

Therefore, the volume of 1,000 drops of this liquid is 1 fluid ounce.

Hope this helps!

6 0
4 years ago
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