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Anuta_ua [19.1K]
3 years ago
13

How do you solve this equation -6x + 7y =13 and -6x +8y =20 using elimination

Mathematics
1 answer:
ohaa [14]3 years ago
8 0

Answer:

x=6,y= 7

Step-by-step explanation:

-6x +7y= 13

-6x+8y=20

-y = -7

divide through by -1

y =7

sub y= 7 in equation 1

then x= 6

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There are two numbers whose sum is 496 . One number is thrice the other . what are the numbers?
alexdok [17]
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5 0
3 years ago
Paloma used these steps to solve the equation 6x+5=3(2x+1). Which choice describes the meaning of her result, 2=0?
vfiekz [6]

Answer:

The equation is false and has no solutions.

Step-by-step explanation:

6x + 5 = 3(2x + 1)


Distributive property.


6x + 5 = 6x + 3


Cancel like terms.


5 = 3


Subtract 3 from both sides.


2 ≠ 0


The equation is false and has no solutions.


This means that these two lines never cross, and thus there is no common solution.

4 0
3 years ago
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How many poundsare in 8 tons?
salantis [7]
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7 0
3 years ago
The Edwards family's bill for dinner is $42.95. How much should they tip their server? (assuming they tip the normal 15%.)
OLEGan [10]

Answer:

Tip given to the server be $6.44 .

Step-by-step explanation:

As given

The Edwards family's bill for dinner is $42.95.

The normal tip is  15%.

15% is written in the decimal form .

= \frac{15}{100}

= 0.15

Tip given to the server = 0.15 × Cost of the dinner

Putting all the values in the above

                                     = 0.15 × 42.95

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Therefore the tip given to the server be $6.44 .

 

7 0
4 years ago
Read 2 more answers
NEED HELP NOW!!!!!!!!
Studentka2010 [4]
It would be 32 for your answer
6 0
4 years ago
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