Cody and Glen have 15 marbles altogether. Cody has 1 more marbles than Glen. Find the number of marbles each boy has.
- Glen
- Cody
Number of marbles that Glen has = 1 u
Number of marbles that Cody has = 1 u + 1
Total number of marbles
= 1 u + 1 u + 1
= 2 u + 1
2 u + 1 = 15
2 u = 15 - 1 = 14
1 u = 14 ÷ 2 = 7
(a)
Number of marbles that Glen has
= 1 u
= 7
(b)
Number of marbles that Cody has
= 1 u + 1
= 7 + 1
= 8
Answer(s): (a) 7; (b) 8
