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allochka39001 [22]
2 years ago
10

A bag of m&m's cost 0.78. how much do 9 bags cost? estimate the total.

Mathematics
1 answer:
Lana71 [14]2 years ago
5 0

Answer:

$7.02

Step-by-step explanation:

without tax

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Answer:

1) x = (a+c)/b

2) The equation is correct no matter what value x takes.

Step-by-step explanation:

1) a−(a+b)x=(b−a)x−(c+bx)

<=> a - ax - bx = bx - ax - c - bx

<=> a - ax - bx - (bx - ax - c - bx) = 0

<=> a - ax - bx - bx + ax + c + bx = 0

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2) 2(3x−5a)+9(2a−7b)+3(5a−2x)=0

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<=> (6x - 6x) + (15a - 10a + 18a) - 63b = 0

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3 0
3 years ago
Read 2 more answers
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