Fill in the blanks with units (Eg 1 u) or unit equations (Eg 1 u + 2).
Bryan and Adam have 130 beads.
Bryan has 30 less beads than Adam.
- Number of beads that Bryan has = _____
- Number of beads that Adam has = _____
- Total number of beads = _____
- 1 u = _____
Choose the person who has less beads to be 1 u.
Bryan has 30 less beads than Adam.
So, Bryan has less beads.
(a)
Number of beads that Bryan has = 1 u
(b)
Number of beads that Adam has = 1 u + 30
(c)
Total number of beads
= 1 u + 1 u + 30
= 2 u + 30
(d)
Total number of beads = 130
2 u + 30 = 130
2 u = 130 - 30 = 100
1 u = 100 ÷ 2 = 50
Answer(s): (a) 1 u; (b) 1 u + 30; (c) 2 u + 30; (d) 50