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pantera1 [17]
3 years ago
8

4x - 2y =7 X +2y =3 What is x and y ??

Mathematics
1 answer:
NARA [144]3 years ago
7 0

Answer:

x=2. y=1/2

Step-by-step explanation:

4x-2y=7. Equation 1

x+2y=3. Equation 2

Add the two equations

(4x+x) +(-2y+2y) =7+3

5x+0=10

5x=10 divide both sides by 5

X=2

Substitute x=2 in equation 2

2+2y=3

2y=3-2

2y=1. Divide both side by 2

Y=1/2

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Step-by-step explanation:

You can see the full detailed explanation in the attached files

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2 years ago
Ez20 chaarecter long
Likurg_2 [28]

Answer:

24 oz has the lowest cost per ounce.

Step-by-step explanation:

12 oz ---> $2.49

1 oz --> $2.49/12

1 oz --> $0.2075

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1 oz --> $3.15/14

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5 0
2 years ago
Jay King, owner of a local Bed and Bath Store knows that his customers will only pay at most, $299 for a blow up bed. Assuming J
N76 [4]
The answer would be 747.50! Because if you were wanting to decrease the price then you would multiply $299 by 40% So since you are wanting to add to the price then you would divide...Hope that makes since :)
8 0
3 years ago
Read 2 more answers
PLS HELP I WILL DO ANYTHING
Lunna [17]

Answer:

the solution for x is x=40

4 0
3 years ago
Please answer ASAP<br><br> 5x−29&gt;−34 OR 2x+31&lt;29
elena-14-01-66 [18.8K]

Answer:

x > -1 or x < -1

Step-by-step explanation:

For the first equation, 5x-29 > -3

Step 1: Move the constant to the right and change its sign

5x-29 > -34

5x > -34+29

Step 2: Calculate the sum

5x > -34+29

5x > -5

Step 3: Divide both sides of the inequality by <em>5</em>

5x > -5

x > -1

<em><u>Answer</u></em><em><u>:</u></em> -1

For the second equation, 2x+31 < 29

Step 1: Move constant to the right and change its sign

2x+31 < 29

2x < 29-31

Step 2: Calculate the difference

2x < 29-31

2x < -2

Step 3: Divide both sides of the inequality by 2

2x < -2

x < -1

<em><u>Answer</u></em><em><u>:</u></em> x < -1

6 0
3 years ago
Read 2 more answers
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