Fill in the blanks.
The number of boys is 8 more than the girls.
The number of adults is eight times the number of children.
Let the number of girls be 1 u.
- Number of boys = 1 u + _____
- Number of children = 2 u + _____
- Number of adults = _____ u + 64
- Number of people = _____ u + 72
(a)
Change X times and more than or less than into units.
The number of boys is 8 more than the girls.
Number of girls = 1 u
Number of boys = 1 u + 8
(b)
Number of children
= 1 u + 1 u + 8
= 2 u + 8
(c)
The number of adults is eight times the number of children.
Number of adults
= 8 x (2 u + 8)
= 16 u + 64
(d)
Total number of people
= (2 u + 8) + (16 u + 64)
= 2 u + 16 u + 8 + 64
= 18 u + 72
Answer(s): (a) 8; (b) 8; (c) 16; (d) 18