Ivory has 11 buttons fewer than Nicole but 39 buttons more than Cody. The three children have 287 buttons altogether.
- How many buttons does Cody have?
- How many buttons does Nicole have?
(a)
Number of buttons Nicole has = 1 u
Number of buttons Ivory has = 1 u - 11
Number of buttons Cody has = 1 u - 11 - 39 = 1 u - 50
Total number of buttons
= 1 u + 1 u - 11 + 1 u - 50
= 3 u - 61
3 u - 61 = 287
3 u = 287 + 61
3 u = 348
1 u = 348 ÷ 3 = 116
Number of buttons that Cody has
= 1 u - 50
= 116 - 50
= 66
(b)
Number of buttons that Nicole has
= 1 u
= 116
Answer(s): (a) 66; (b) 116
