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KiRa [710]
3 years ago
14

What is the value of y in the following system of equations? explain how you found your answer

Mathematics
2 answers:
AlekseyPX3 years ago
7 0

Step-by-step explanation:

I've used elimination method over here but it can also be done by using substitution.

Andreyy893 years ago
5 0
2x + 3y = 6
2x + y = -2

Solve the second equation for y and substitute into the first equation

2x + y = -2
y = -2x - 2

2x + 3y = 6
2x + 3(-2x - 2) = 6
2x - 6x - 6 = 6
-4x - 6 = 6
-4x = 12
x = -3

Plug back in to solve for y
2x + y = -2
2(-3) + y = -2
-6 + y = -2
y = 4

Plug into other equation to check
2x + 3y = 6
2(-3) + 3(4) = 6
-6 + 12 = 6
6 = 6 :)
You might be interested in
If p = -2 and q = 5, is the value of p/q equivalent to 2/5?
grandymaker [24]

Answer:

No.

Step-by-step explanation:

1. Subsutute p/q with the numbers given, p = -2 and q = 5.

-2 / 5.

2. Divide 2/5 and -2/5 and compare.

2 / 5 = 0.40

-2 / 5 = -0.40

-0.40 < 0.40

If they are not =, then they are <u>NOT</u> equivalent.

Which means, they are Not equivalent.

5 0
3 years ago
Divide £12 between mick and sharon in the ratio 2:4
antiseptic1488 [7]

Answer:mick share is £4 while Sharon share is £8

Step-by-step explanation:

Money to be shared=£12

Mick : sharon=2:4

Sum of ratio=2+4=6

Mick share=2/6 x 12

Mick share=(2x12)/6

Mick share=24/6

Mick share=4

Sharon share=4/6 x 12

Sharon share=(4x12)/6

Sharon share=48/6

Sharon share=48/6

Sharon share=8

6 0
3 years ago
A local grocery store is running a marketing promotion on social media. They are randomly choosing a winner from the entrants th
AlladinOne [14]

Using it's concept, it is found that the odds that the winner shops in the store 4 or more times a week are given by: 9:41.

<h3>What is the odd of an event?</h3>

It is given by the <u>number of desired outcomes divided by the number of non-desired outcomes</u>.

Researching the problem on the internet, it is found that 18% of the winners shop in the store 4 or more times a week, while 82% do not, hence:

18:82 = 9:41

The odds that the winner shops in the store 4 or more times a week are given by: 9:41.

More can be learned about odds at brainly.com/question/25683609

3 0
2 years ago
HELPPPP PLEASE OMGGG
vlabodo [156]

Answer:

positive

negetive

negative

positive

Step-by-step explanation:

multiplication of of negetive values is positive

multiplication of positive value and negetive value is negetive

4 0
2 years ago
Help me please thank
pickupchik [31]
37 students get at most 67 scores.

The numbers 60-67 represent the lower quartile (lowest 25%). 25% of 60 is 15 not 30. Therefore it is incorrect.
7 0
2 years ago
Read 2 more answers
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