Three friends are making purchases in the garden store. Betty buys 2 bushes and 1 flower pot for $31. Bob buys 1 bush and 3 flower pots for $23. Ron buys 1 bush and 1 flower pot. How much does Ron pay?
+2498 b-bushes
f-flowers
Betty buys 2 bushes and 1 flower pot for $31
2b+1f=$31
Bob buys 1 bush and 3 flower pots for $23
1b+3f=$23
So you have:
2b+1f=$31 2b+1f=31 minus them from each other: 2b+1f-(2b+6f)=31-46
1b+3f=$23 x2 2b +6f=46 -5f=-15
f=3
let s put f=3 into one of the equations
2b+1f=$31 f=3
2b+3=31
2b=28
b=14
Ron buys 1 bush and 1 flower pot. How much does Ron pay?
b+f=? b=14 f=3
14+3=17
Answer:17
