+0  
 
0
523
1
avatar

Zahra spends $20.50 on 10 party favors for her party. The boys each receive a puzzle book that cost $1.75 each. The girls each received a magic trick that costs$2.25 each. How many boys and how many girls attended the party?

 Dec 9, 2016
 #1
avatar+37084 
0

10 party favors

y=number of girls      2.25 y = total cost of girls party favors

x= number of boys is also equal to (10-y)    1.75 (10-y) = total cost of boys' party favors

 

Total cost of Boys' and Girls' party favors = 20.50

2.25y + 1.75(10-y)  = 20.50

2.25y + 17.50 -1.75y = 20.50

 .5y +17.50 = 20.50

.5y = 3.00

y = 6 = girls         boys = 10 - y = 10-6 = 4 boys

 Dec 10, 2016

7 Online Users

avatar
avatar
avatar
avatar