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Ber [7]
3 years ago
10

What is the steps and answer to do this question -x-7y=9 -x+9y=-23

Mathematics
1 answer:
Hitman42 [59]3 years ago
7 0
The answer is 23.

Good luck :)
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If a and b are odd integers,then a-b is an even integer identify the conclusion
garri49 [273]
Any two odd integers will always add up to an even number. Examples include 1+1=2, 15+19=34, etc. 
6 0
3 years ago
4. Lou ran 72 more miles than Lee. Lou ran 128 miles. How many miles did Lee run?
Lilit [14]
56 miles

If Lou ran 72 more miles than lee. Just subtract 72 from 128 (128-72) and you get 56.
3 0
2 years ago
Calculate the new area using a scale factor of 3.
Ludmilka [50]

Answer:

315

Step-by-step explanation:

Using a scale factor of 3 basically means just multiply the length and the width by 3.

So instead of 5 * 7, we are doing 15 * 21.

15 * 21 = 315

8 0
3 years ago
Please please help !!!!!!!!
adoni [48]

Answer:

98°

142°

83°

97°

Step-by-step explanation:

m(arc)JL = 2 × 49° = 98°

m(arc)MJ = 360° - 120° - 98° = 142°

m<KJM = (120° + 46°)/2 = 83°

m<KLM = (360° - 120° - 46°)/2 = 97°

8 0
2 years ago
A coffee seller makes a salary of 3,500 dollars per month plus $12 commission for every $100 of coffee he sells. a case of coffe
QveST [7]

Th coffee seller must have sold 130 coffee case but for him to make at least $3650, he must've sold 131 cups of coffee

Data;

  • monthly salary = $3500
  • commission = $12
  • amount due for commission = $100
  • cost of coffee = $25
  • total amount = $3650

<h3>Word Problem</h3>

These are verbal expressions used to represent mathematical problems and if we want to solve them, we must translate them into equations.

If his total pay is $3650 and he earns a commission of $12 for every $100 coffee sold.

How many coffee case are inside $100

100/25=4

This shows that for every 4 coffee case sold, she made ($100 + $12) as profit.

If 4 coffee = $112

how many coffee will give us $3650

4coffee=$112\\x coffee = $3650\\x = \frac{4*3650}{112} \\x = 130.35

From the calculations above, he must've sold at least 131 cups of coffee to make $3650.

Learn more on word problems here;

brainly.com/question/21405634

3 0
2 years ago
Read 2 more answers
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