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Inga [223]
3 years ago
10

2x -y=-1 3x-2y=1 elimination somebody do this for me

Mathematics
2 answers:
ch4aika [34]3 years ago
8 0
2x-y=-1  (1)
3x-2y=1  (2)
(1) * 2--> 4x-2y=-2   (3)
(3) - (2)
x= -3

sub x= -3 into (1)
2(-3)-y=-1
-6-y=-1
-y=5
y= -5
Goryan [66]3 years ago
3 0
-2(2x-y)=-1
3x-2y=1

-4x+2y=2
3x-2y=1

-x=3 (x=-3)
(-3,__)

2(-3)-y=-1
-6-y=-1
-y=-1+6
-y=5
y=-5
so..(-3,-5)
  

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Please can you solve this as I am confused ​
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8 0
3 years ago
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Every week, a car dealer ship sells at least 5 minivans. Write an inequality that represents this situation. Let c represent the
kvv77 [185]

Answer:

we conclude that an inequality 'c ≥ 5' denotes this situation.

Step-by-step explanation:

Given

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When we talk about 'at least', it means we are talking about '≥' in terms of representing the 'at least' in inequality symbol.

For instance,

'm≥n' means 'm' is greater than or equal to 'n'.

It means 'm' is at least equal to 'n'.

Coming back to the question,

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As the car dealer ship sells at least 5 minivans. so the

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Thus, we conclude that an inequality 'c ≥ 5' denotes this situation.

8 0
3 years ago
Keith has 3(1/12) week's worth of pay in a wallet and 3(5/12) week's of pay in the bank. Weeks ago, Keith spent 2(1/12) hours ch
hram777 [196]

Answer:

(1/3) weeks worth of pay.

Step-by-step explanation:

Keith has 3(1/12) weeks worth of pay in a wallet.

Keith has 3(5/12) weeks worth of pay in the bank.

How many more weeks of pay is in Keith's bank than Keith's wallet?

The number of weeks more of pay in Keith's bank than Keith's wallet

= (Number of weeks worth of pay in the bank) - (Number of weeks worth of pay in the wallet)

= 3(5/12) - 3(1/12)

= (4/12) = (1/3) weeks worth of pay.

Hope this Helps!!!

5 0
3 years ago
Solve the equation below algebraically for the exact value of x.<br>6 - 2(x + 5) = 42​
Ket [755]

Answer:

x= -19

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6-2x-10=42

-4-2x=42

-2x=38

x= -19

6 0
3 years ago
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