Think of it like this, 40 out of 100 is 40% just as 34 out of a number is 40%. So, you simply do this: 34/x=40/100, then you cross multiply and get: 40x=3400, and solve for x by dividing by 40. Giving you 85, and 34 out of 85 is 40%.
Total = 7 + 5 + 3 = 15
Green = 3
Red = 7
P(two green) = (3/15)(2/14) = 1/35
P(two red) = (7/15)(6/14) = 1/5
Answer: P(two green) = 1/35 ; P(two red) = 1/5
To find a unit rate to a proportional, you simply divide y and x. 18÷4=4.5
8418 is standard form but theres:
word form= eight thousand four hundred and eighteen
or
expanded form: 8000+400+10+8