I think you forgot to mention Susan's current age if not:
x+5
x-4
6x
Answer:
840mi. - 12 hrs
x - 3 hrs
This is a simple cross multiplying problem.
840 _ 12
x -- 3 ⇒12x=3(840) ⇒ 4x=280 ⇒ x=70 miles
:D
Step-by-step explanation:
Answer:
9 bracelets
Step-by-step explanation:
Divide 6/2 = 3 bracelets per hour
3 bracelets * 3 hours = 9 bracelets
Sand to cement
7:3
210:x
ask yourself what number is needed to multiply by 7 to get 210 ( so you'd divide 210 by 7 which is 30). Multiply the other side by thirty as well to get the value of x
3*30 which is 90
Proportion
3 parts milk. 12cups
2 parts sugar X
8 cups sugar
