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nata0808 [166]
3 years ago
15

Andrea is saving money for a car. She makes $13 an hour shampooing dogs at the local groomer. After 18% is subtracted from her p

aycheck she puts 50% of her remaining check in her savings account. Let x represent the number of hours Andrea works. Write an expression in simplest form that represents the amount of money Andrea saves each paycheck.
Mathematics
1 answer:
SSSSS [86.1K]3 years ago
3 0

Answer:

Saved money = 0.41x

Step-by-step explanation:

x : hours Andrea works

If the 18% is subtracted from her paycheck, she still has the 82% (100 - 18)

Then after that she has:

0.82x

Now Andrea saves 50% of the remaining check (0.82x)

Saved money = 0.5(0.82x)

Saved money = 0.41x

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miv72 [106K]
She should use 18 tablespoons of plant food.

6÷2= 3

3×6= 18

Hope this helps! :)

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7 0
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Layla used 0.482 grams of salt in her experiment. Maurcie use 0.51 grams of salt. Who used the greater amount of salt?
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All you do is look at the first number and see which is greater than you will get your answer glad to help btw if you cant get it it's Maurice
7 0
3 years ago
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A book claims that more hockey players are born in January through March than in October through December. The following data sh
denis-greek [22]

Complete question :

Birth Month Frequency

January-March 67

April-June 56

July-September 30

October-December 37

Answer:

Yes, There is significant evidence to conclude that hockey​ players' birthdates are not uniformly distributed throughout the​ year.

Step-by-step explanation:

Observed value, O

Mean value, E

The test statistic :

χ² = (O - E)² / E

E = Σx / n = (67+56+30+37)/4 = 47.5

χ² = ((67-47.5)^2 /47.5) + ((56-47.5)^2 /47.5) + ((30-47.5)^2/47.5) + ((37-47.5)^2/47.5) = 18.295

Degree of freedom = (Number of categories - 1) = 4 - 1 = 3

Using the Pvalue from Chisquare calculator :

χ² (18.295 ; df = 3) = 0.00038

Since the obtained Pvalue is so small ;

P < α ; We reject H0 and conclude that there is significant evidence to suggest that hockey​ players' birthdates are not uniformly distributed throughout the​ year.

5 0
2 years ago
28 percent of 63 is what
baherus [9]
The answer is 17.64    

4 0
3 years ago
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Write a let statement, an equation, solve: Jeremy is 14 years old. This is 4 1/2 years more than half his sisters age. How old i
Art [367]
J = 14
J = 1/2S + 4 1/2

14 = 1/2S + 9/2....multiply everything by 2 to get rid of fractions
28 = S + 9
28 - 9 = S
19 = S

check...
14 = 1/2S + 9/2......S = 19
14 = 1/2(19) + 9/2
14 = 9 1/2 + 9/2
14 = 19/2+ 9/2
14 = 28/2
14 = 14 (correct)

so the sister is 19 <===
6 0
3 years ago
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