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Butoxors [25]
3 years ago
13

System of substitution Y-9=-x 3x-y=7

Mathematics
2 answers:
gregori [183]3 years ago
8 0
1.  X = 9 - Y

2. X = 7+y/3

I really hope this helps. :)
Vikentia [17]3 years ago
5 0
3(y-9)-y=7
3y - 27 -y = 7
2y = 34
Y = 17

3(x) -17 = 7
3x = 24
X = 8

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A sporting good store is offering an additional 30% off all clearance items and she purchases a pair of running shoes on clearan
Talja [164]

Answer:

Total discount = $39.50

                  or 46.47 %

Step-by-step explanation:

First we need to figure out what she will pay for the shoes.  She is getting 30 percent off the 65 dollars.

Discount = price * percent off

                = 65*.3

                = 19.50

The cost of her shoes is the price minus the discount.

Cost = 65- 19.5

        = 45.50


To find the total discount, take the original price and subtract the final cost.

Total discount = 85-45.50

                        = 39.50

To find the total percent discount, we use the formula

      total percent discount = (original - final)/original * 100

                                             = (85- 45.50)/85 * 100

                                             = 39.5/85*100

                                              = 46.47%

4 0
3 years ago
Your salary is $65,788. If you work fifty 40-hour weeks in a year, what is your hourly wage?
Dahasolnce [82]

Answer:

$31.63 per hour

Step-by-step explanation:

$31.63 per hour

40 hour weeks × 52 weeks = 2080 hours

65,788/2080= 31.63

hope this helped,brainliest?

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2 years ago
The Pythagorean Theorem
PilotLPTM [1.2K]

Answer:

a²+b²=c²

Step-by-step explanation:

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Answer:

They are equivalent

Step-by-step explanation:

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You could use photomath for thiss!
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