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Stells [14]
3 years ago
6

I need help with math

Mathematics
2 answers:
Alex787 [66]3 years ago
8 0

Answer:

The answer is $10

Step-by-step explanation:

c+5 multiplied by 2 is 2c+10=30 subtract ten to get 2c=20 divide by 2 and get your answer c=10

lbvjy [14]3 years ago
4 0
Answer: 15
Answer: c +5 is the same as c+5 and 2 of (c+5) equals 30, so 30/2 will equal the price of 1 pizza.
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Sheryl got these scores on her spelling tests.
erica [24]

Answer:

5.6

Step-by-step explanation:

Sheryl got the following scores on her spelling tests.

95, 89, 99, 85, 82

Mean = sum of all observations/ Number of observations

Sum of all observations =95+89+99+85+82=450

Number of observations = 5

So,

Mean =\frac{450}{5}=90

Let M denotes the mean

Mean absolute deviation =\frac{\sum_{i=1}^{n}\left | x_i-M \right |}{n}

Put n=5

So,

Mean absolute deviation =\frac{\sum_{i=1}^{5}\left | x_i-M \right |}{5}=\frac{|95-90|+|89-90|+|99-90|+|85-90|+|82-90|}{5}=\frac{5+1+9+5+8}{5} =\frac{28}{5}=5.6

3 0
3 years ago
A skyscraper with 102 floors is 1326 feet tall each floor is the same height how tall is each floor
NeX [460]
1326/102 = 13 feet

each floor is 13 feet tall
5 0
3 years ago
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Which of the answer choices describes Monica's budget?
musickatia [10]

Answer:

It is in deficit.

Step-by-step explanation:

I got it right on the test

5 0
3 years ago
Evaluate the expression 2x^2 - x, when x = -3. Show all steps.
V125BC [204]

Answer:

21

Step-by-step explanation:

This is a substitution question,we are to substitute a given value in place of a certain letter

So let's solve

2x^2-x

And since x is given to be -3

So let's substitute

2(-3)^2-(-3)

2(9)-(-3)

18+3

21

So the final answer is 21

4 0
4 years ago
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Answer:

Alex will have to pay $80 income tax.

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3 years ago
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