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Lubov Fominskaja [6]
3 years ago
11

Lin's job pays $8.25 an hour plus $10 of transportation allowance each week. She has to work at least 5 hours a week to keep the

job, and can earn up to $175 per week (including the allowance). 1. Represent this situation mathematically. If you use variables, specify what each one means and how many hours per week can Lin work? explain or show reasoning ​
Mathematics
1 answer:
Usimov [2.4K]3 years ago
5 0
Y=8.25x+10

10 is the allowance plus the 8.25 times x which is the hours
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Liono4ka [1.6K]

Answer:

(x, y) = (3, 5)

Step-by-step explanation:

5x+2y=25\\5x-y=10

Solving by elimination here again, there are 2 good options available. Either multiply the whole bottom equation by -1 to cancel the x, or by 2 to cancel the y. I'll do the latter:

5x+2y=25\\\\2(5x-y=10)\\10x-2y=20

Add from top to bottom:

\rightarrow (5x+10x)+(2y-2y)=25+20\\\rightarrow 15x=45\\\rightarrow x=3

Now, with the value of x, solve for y in either of the equations. I'll choose the second one here:

\rightarrow 5x-y=10\\\rightarrow 5(3)-y=10\\\rightarrow 15-y=10\\\rightarrow -y=-5\\\rightarrow y=5

(x, y) = (3, 5)

4 0
2 years ago
Read 2 more answers
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ki77a [65]
50 - (10.95 + 14.20) =
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Hope this helps.
4 0
4 years ago
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I am weighed on scales which have a 10% error, that is, the scales show me 10% heavier than my real weight. If I actually weigh
stiks02 [169]
Remember you said the scale shows you 10% heavier.

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So scale would show  110% of 82

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OR

We can simply find 10% of 82 and add it to the original 82.

10% of 82

(10/100) * 82

0.1 * 82 = 8.2

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cupoosta [38]

Answer: m=5/3

Step-by-step explanation:

i think its right

4 0
3 years ago
martin spent 6 hours on homework every day . what percentage of the day did martin spend doing homework ?
Ann [662]
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6 0
3 years ago
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