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Svetlanka [38]
3 years ago
9

How do I solve it because it’s really difficult

Mathematics
1 answer:
dybincka [34]3 years ago
6 0

The solution of the equation is x= 3 and y = 2

Step-by-step explanation:

Given,

-3x-4y = -17 and

-x-3y = -9

The system of equation can be rewritten as

3x+4y = 17 ------eq 1 and

x+3y = 9 ------ eq 2

To solve for x and y

Multiplying eq 2 by 3 we get,

3x + 9y = 27

or, 3x = 27-9y

Putting this value of x into eq 1 we get,

27-9y +4y = 17

or, -5y = 17-27

or, -5y = -10

or, y = 2

Now put y=2 in eq 2 we get,

x = 9 - 3(2)

= 3

Hence the solution is x = 3 and y = 2

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8 0
3 years ago
A sofa is on sale for 66% off. The sale price is $231.20.
Afina-wow [57]

The regular price of the sofa if 66% is given off, is $680.00

What is regular price?

The regular price of the sofa is the price at which it is sold without considering the coupon of 66%, in essence, it is 100% of the original price of the sofa, in short, if 66% is given off, then the sale price is 34% of the original price

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1% of regular price=231.20/34

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100% of regular price=$6.80*100

100% of regular price=$680

Find out more about regular price on:brainly.com/question/4817441

#SPJ1

Full question

A sofa is on sale for 66% off. the sale price is $231.20 . what is the regular price?

:

7 0
1 year ago
What’s the y intercept of y=-2x+6
Eva8 [605]
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3 years ago
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A small company’s net income for the first six months of the year was $76,500 and for the last six months it was $100,000. What
kkurt [141]
Hello

Answer: The ratio of the first 6 months to the last 6 months is 0.765.
First, we need to determine the amount of money they had in each 6 month period.
In the first 6 months they had: 6 x 76500 = 459000
In the second 6 months they had: 6 x 100000 = 600000
Divide the 2 values to find the ratio:  459000 / 600000 = 0.765
Have a nice day
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3 years ago
Help pls and thank youuuu to whoever helps me !!!!!!
Umnica [9.8K]

Answer:

the first one

Step-by-step explanation:

Not to sure if it's right but hope it helps u ;)

8 0
3 years ago
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