46 - 4 = 3b + 3
Simplify the left side:
42 = 3b + 3
Subtract 3 from both sides:
39 = 3b
Divide both sides by 3:
b = 13
Answer:
Step-by-step explanation:
Divide the equation by 3, subtract 9, take the square root.
3x^2 + 27 = 0
x^2 + 9 = 0 . . . . . divide by 3
x^2 = -9 . . . . . . . . subtract 9
x = ±√(-9) . . . . . . take the square root
x = ±3i . . . . . . . . . use imaginary numbers to express the root
Answer:
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48/6 = 8
He needs to buy 8 of the six pack size for a total of :
8 x 12.12 = $96.96
Or
48/ 4 = 12 Of the 4 packs for a total of
12 x 9.72 = $116.64
He would save
116.64 - 96.96 = $19.68 by buying 8 of the six packs.