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pickupchik [31]
3 years ago
10

Create an equivalent system of equations using the sum of the system and the first equation.

Mathematics
2 answers:
Rzqust [24]3 years ago
6 0

Answer:

B) {-5x + 4y = 8

{-x + 5y = 10

Step-by-step explanation:

Add like it said, and you will see your answer.

Art [367]3 years ago
3 0

Answer:

Option B

-5x+4y=8

-x+5y=10

Step-by-step explanation:

We are given that

System of equations

-5x+4y=8

4x+y=2

We have to find an equivalent system of equations using sum of system and first equations

Sum of system of equations

-5x+4y+4x+y=8+2

-x+5y=10

Therefore, option B is true.

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Please help if you can
schepotkina [342]


Step-by-step explanation:

sqrt of 81 is 9 so rational

Sqrt of 89 is irrational

Sqrt of 121 is 11 so rational

Sqrt of 131 is irrational.

4 0
3 years ago
we said that the ratio of girls to boys in the class was 2:9. if there were 90 boys in the 9th grade, how many girls are there
Juliette [100K]

Answer:

20

Step-by-step explanation:

If the ratio of boys is 9 there are 90 boys. If 9=90 then 1= 10. 10 x 2 = 20

I hope this helps :0)

7 0
3 years ago
Read 2 more answers
What are the zeros of the quadratic function f(x) = 2x2 + 16x – 9?
Lena [83]
To find the zeros of this equation you need to first set it equal to zero
2x2 + 16x - 9 = 0
But since you can't FOIL this equation you need to move the non-variable number over
2x2 +16x = 9
Now solve for x by pulling an x out of the equation
x(2x + 16) = 9
x = 9
2x +16 = 9
2x = -7
x = -7/2
So your zeros would be at x = 9, and -7/2
7 0
3 years ago
4 + 4 = <br><br><br><br><br> plz help me question below!
STALIN [3.7K]

Answer:

A

Step-by-step explanation:

5y=32

trying to get y by itself

y=32/5

32/5 is the same as 6 and 2/5

pls  mark me brainliest

5 0
4 years ago
Read 2 more answers
A family’s lunch bill is $10.19 before tax and tip. Using the percents shown for sales tax and gratuity, how much money should t
svp [43]

Answer:

The answer is 12.36

Step-by-step explanation:

I just did the assignment and guessed and got them wrong and it said this is the right answer so yeah.

You're welcome!! :D

7 0
3 years ago
Read 2 more answers
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