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AlekseyPX
3 years ago
6

X - y = 8 and -x + y = 4 solve the equation of linear equations by substitution​

Mathematics
1 answer:
ch4aika [34]3 years ago
7 0

Answer:

No solution

Step-by-step explanation:

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Which of the following is correct?
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none

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Read 2 more answers
Can somebody help me
qaws [65]
Okay so for the #1 it says that it take 1/2 (half) a day to paint 1/4 of your bedroom and we want to know how many days it would take to paint all of the bedroom, so 4/4 of the bedroom.
We can say that
1/2(number of day) = 1/4(how much you painted)
to paint all of your room you would have to have painted 4/4 of your room
to get to 4/4 i multiplied 1/4 by 4
you do the same thing to 1/2 so 1/2•4=2
So it would take 2 days to paint all (4/4) of your bed room

I dont if im clear but just think about it
If you take half a day to pain 1/4 of your room, in one day you would’ve painted 2/4 of your room, so in one day you paint 2/4 of your room. And in 2 days you paint 4/4 of your room
8 0
3 years ago
What are the first four solutions to the sequence: f(1) = 4 and f(n) = 2*f(n-1)+3
Marrrta [24]
F(1) = 4 is given


f(2) = 2*f(2-1)+3
= 2*f(1)+3
= 2*4+3
= 8+3
= 11
f(3) = 2*f(3-1)+3
= 2*f(2)+3
= 2*11+3
= 22+3
= 25
f(4) = 2*f(4-1)+3
= 2*f(3)+3
= 2*25+3
= 50+3
= 53
f(5) = 2*f(5-1)+3
= 2*f(4)+3
= 2*53+3
= 106+3
= 109

f(1) = 4
f(2) = 11
f(3) = 25
f(4) = 53
f(5) = 109
8 0
3 years ago
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