A) cranberry : apple
3 : 5
6 : 10
12 : 20
30 : 50
33 : 55
b) These quantities are proportional because they are the same as 3/5 just doubled, tripled etc. For example, 3/5 is proportional to 6/10 because both the numbers were multiplied by the same number. In this case it's 2.
That would be the transitivity<span> of the equality.
Good Luck</span>
125 miles in 4 hours
24 hours in one day
24/4=6
125•6=750 miles
Factoring: x4-4x3+8x-32
Thoughtfully split the expression at hand into groups, each group having two terms :
Group 1: 8x-32
Group 2: -4x3+x4
Pull out from each group separately :
Group 1: (x-4) • (8)
Group 2: (x-4) • (x3)
-------------------
Add up the two groups :
(x-4) • (x3+8)