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Andru [333]
3 years ago
12

12.5,−10,−7.5,x; The mean is 11.5.

Mathematics
1 answer:
Stella [2.4K]3 years ago
5 0

Answer:

x = 51

Step-by-step explanation:

the mean is calculated as

mean = \frac{sum}{count}

here mean = 11.5 , then

\frac{12.5-10-7.5 +x}{4} = 11.5 ( multiply both sides by 4 to clear the fraction )

- 5 + x = 46 ( add 5 to both sides )

x = 51

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The maximum  number of pizzas that Mr. Braun can buy is 5.

The equation that can be used to represent the total amount spent on soda pop and pizzas is:

$75 = 5x($0.75) + x($9)

Where:

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  • 5x = total number of drinks that can be bought

In order to determine the number of pizzas that can be bought, we have to solve for x

$75 = 3.75x + 9x

$75 = $12.75x

x = $75 / 12.75

x = 5.88

If 6 pizzas are bought, 30 drinks would be bought, the total cost would be:

6($9) + 30(0.75) = $76.50

If 5 pizzas are bought, 25 drinks would be bought, the total cost would be:

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A similar question was answered here: brainly.com/question/13965560

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A one pound bag of skittles contains 300 pieces of which 28% are red. How many skittles were red?
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Answer with explanation:

We have to graph the Linear equation:

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≡None of the option

 

5 0
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