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Dafna11 [192]
3 years ago
6

Please answer this X+2y=6 3x-y= -10

Mathematics
1 answer:
valentina_108 [34]3 years ago
4 0
3x-y=-10
y=3x+10
so the equation “x+2y=6” is “x+2(3x+10)=6” so we have:
x+6x+20=6
7x=6-20
7x=-14
x=-14/7=-2
to get y we can replace x with its value “-2” in the equation”y=3x+10” so we have:
y=3(-2)+10=-6+10=4
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Pls I need help with this question..Thanks
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Answer:

60cm

Step-by-step explanation:

1:50 means every foot is 50 feet.

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Reading Readiness, Inc. has provided you its list of accounts and balances as of January 31. The Controller has asked you to pre
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4 0
3 years ago
What number is 35% of 80?
Wittaler [7]
What number is 35% of 80?

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3 years ago
Given a+b=7 and a–b=3, find:<br> 3^a÷3^b<br> ​
Mama L [17]

Answer:

a=  -2 and b=3

Step-by-step explanation:

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a + 3b = 7

a + 3b - 3b = 7 - 3b

a + 0 = 7 - 3b

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a  =  7  −  ( 3  ⋅  3)

a  =  7  − 9

a  =  − 2

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3 years ago
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