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Anna [14]
3 years ago
7

All you need is in the photo ​

Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
3 0

Answer:

4 hours mowing lawns and 4 hours washing cars. 6 hours washing cars and 2 hours mowing lawns.

Step-by-step explanation:

Car washing gets paid more so it would only be fair if he worked more hours of washing cars than mowing lawns. Hope this helped you!!

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Find the sample standard deviation. 124, 178, 265, 157, 112, 299, 143, 143
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Step-by-step explanation:


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4 years ago
Simplify -7 1/8 - (-9 1/2
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Only answer #5 <br><br><br>Please help me and thx and if u can answer #6 too if u can
Marianna [84]

Answer:

5. D

6. C

Step-by-step explanation:

<u>Question 5</u>

Lets plug in values of x and y into each equation to see which one works for the entire data set...

y=2x-4

1) Plug in -7 as x and -18 as y:

-18=2(-7)-4

2) Multiply:

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3) Subtract:

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The answers are the same, therefore the correct answer to question 5 is equation D. Keep in mind, you want to check ever single pair of points to make sure it works for all of them, I'm just not going to list that as it would make this answer a lot longer for no reason.

<u>Question 6:</u>

We know that the cost for the boat is $25 as a base price, and also costs an additional $1.30 per day for fuel.

The correct equation is C=25+1.30d, because we are adding 1.3 every single day.

4 0
3 years ago
0.08<br> 0.52<br> I need more help
mariarad [96]
If you add both of those then you will get 0.60 then you get that answer in math add it great that’s the answer put it on the sheet of paper
6 0
3 years ago
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Please help. Solving equations.
defon

Answer:

     80

x=  ------

       7

Step-by-step explanation: photomath youre welcome

7 0
3 years ago
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