Hasan spent $45 on 17 basketball cards and soccer cards. The basketball cards cost $2 each and the soccer cards cost $3 each. How many soccer cards did he buy?
2007-03-25 23:35:07 · 5 answers · asked by bio-nana121 3 in Science & Mathematics ➔ Mathematics
try iterative. Syuppose all he spends is on soccer cards. That is, he bought 15 cards. Now, for every two cards of socer exchanged, he gets 3 cards of basketball. so, exchange two soccer cards (15 --> 13) and buys three cards of basketball (13 -- > 16). Repeat this exercise one more time and you will get answer.
2007-03-25 23:44:55 · answer #1 · answered by dipakrashmi 4 · 1⤊ 0⤋
let the number of soccer cards be 'x'
17 (bball cards) * 2 (dollars) + 3x=45
34+3x=45
3x=45-34=9
x=3
number of soccer cards = 3
2007-03-25 23:49:42 · answer #2 · answered by yin yang 4 · 0⤊ 2⤋
basket ball cards= 6
soccer cards= 11
2007-03-25 23:40:44 · answer #3 · answered by itslizas 2 · 0⤊ 1⤋
6 X 2 = 12
11X 3 = 33
_____________
17____ 45
Just try every number times two and see what works.
2007-03-25 23:40:35 · answer #4 · answered by Anonymous · 1⤊ 0⤋
the answer is 3
2007-03-25 23:53:01 · answer #5 · answered by onalethata mothusi m 1 · 0⤊ 2⤋