Data: (adopting)
Y = <span>$4.90
K = 2 boxes
x = ? (how much in each box)
Solving:
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16 will go where the question mark is located
So 3/6 = 8/16
Think of it like this: if you had three slices of pizza out of 6 total, then you had half the pizza. The same goes for if you had 8 slices out of 16 total
You can use the cross multiplication rule to find x
3/6 = 8/x
3*x = 6*8
3x = 48
3x/3 = 48/3
x = 16
You start by taking the 2.5 over to the other side. This is a positive number so when you take it over it will become a negative.
2.5-0.25x = -3
-0.25x =-3-2.5
-0.25x=-5.5
now -0.25 is being multiplied to x, when you take it over to the other side, it becomes divide.
-0.25x = -5.5
x = -5.5/-0.25
x = 22
54 minutes. .....................
