Fill in the blanks.
The number of boys is 7 less than the number of girls.
The number of adults is five times the number of boys.
Let the number of boys be 1 u.
- Number of girls = 1 u + _____
- Number of children = 2 u + _____
- Number of adults = _____ u
- Number of people = _____ u + 7
(a)
Change X times and more than or less than into units.
Number of boys = 1 u
The number of girls is 7 more than the number of boys.
Number of girls = 1 u + 7
(b)
Number of children
= 1 u + 1 u + 7
= 2 u + 7
(c)
The number of adults is five times the number of boys.
Number of adults
= 5 x 1 u
= 5 u
(d)
Total number of people
= 2 u + 7 + 5 u
= 2 u + 5 u + 7
= 7 u + 7
Answer(s): (a) 7; (b) 7; (c) 5 ; (d) 7