Site hosted by Angelfire.com: Build your free website today!
Proportion
Exercise 3 (Page 1, & 2) - Example
Home
HWFORKIDS
Proportion
Exercises
Page
1 of 2
Page
2 of 2




1. Find the value of y in: y/5 = 2/3 1/3

   y    =    2   
  5       3 1/3   

   y    =    2   
  5       10/3  

y = 5 x 2 x   3  
                  10

y = 3



2. Find the value of y in: y/5 = 3 1/3/3 1/2

   y    =    3 1/3  
  5         3 1/2   

   y    =    10/3   
  5          7/2  

y = 5 x   10    x      2  
                3            7

y = 4.762

3. Distance, rate and time.

A plane travels at 700 km in 2 hrs. How far it will go in 3 hrs?

By proportion:
700 =   D  
  2        3
700 x 3= D
  2
D = 1,050 km

By formula: Distance D = rate x time
D = 700/2 x 3 = 1,050 km



Home
HWFORKIDS
Proportions
Exercises
Page
1 of 2
Page
2 of 2