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NeX [460]
4 years ago
7

6(1—a) =3(a—b)+1 4(b—2) =3a Consider the system of equations above. If (a, b) is the solution to the system, then what is the

Mathematics
1 answer:
Jet001 [13]4 years ago
5 0
6-6a=3a-3b+1,    9a-3b=5
<span>4b - 8 =3a,           3a-4b=-8
</span> 
9a-3b=5
(3a-4b=-8 )*(-3 )

 
9a    -3b=    5
-9a+12b=+24
adding both equations
9b=29, b=29/9

3a=4b-8=4*29/9 -8=(4*29-8*9)/9 = 44/9
a=44/27
a-b=44/27 - 29/9=44/27 - 29*3/27=-43/27
this is a correct answer, unfortunately they do not have this choice, probably they made mistake somewhere. I even check the solution of equations by substitution values of a and b into equations

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kari74 [83]

Answer:

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3 0
3 years ago
What is the factored form of 9X^2-64
Maksim231197 [3]
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3 years ago
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8 0
3 years ago
We know that Martin is buying some apples at $0.75 each and two dozen oranges
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Step-by-step explanation:

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is the correct answer

8 0
2 years ago
the area of the top of a rectangular table is 323 square feet. If the length of the table is 19 feet , what is the width
sergejj [24]

Answer:

hello :

the area is : A= w ×l     ...   w :  the width    l : the length

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4 0
3 years ago
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