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ratios word problems 7

problem: ratios word problems 7


Nancy, Nora and Pam saved money in the ratio  3 : 7 : 9

If they saved $ 5700, how much did every single one?

 

answer: ratios word problems 7


1. step: given
 
                   parts            $
 
Nancy:            3              ? 
 
Nora:               7              ?
 
Pam:               9              ?                     
 
total amount: 19         5 700
 
wanted: every single person
 
 
2. step: 1 part
 
1 part = $ total amount: parts total amount
 
1 part =  5700 : 19
 
1 part = 300 $
 
 
3. step: Nancy, Nora and Pam
 
                   parts           $
 
Nancy:           3       3 * 300 = 900 
 
Nora:             7       7 * 300 = 2100
 
Pam:              9       9 * 300 = 2700      
 
total amount: 19                     5700
 
 
4. step: answer
 
Nancy saved $900.
 
Nora saved $2100.
 
Pam saved $2700.