Fill in the blanks in units or unit equations. (Eg 3 u OR 1 u + 2)
A box contains some stickers in three colors.
30% of the stickers are red.
There are 25
less green stickers than red stickers.
The remaining stickers are blue.
- Number of red stickers = _____
- Number of green stickers = _____
- Number of green stickers and red stickers = _____
- Number of blue stickers = _____
(a)
Change percentage into units.
30% =
30100 =
310Number of red stickers = 3 u
(b)
There are 25 less green stickers than red stickers.
Number of green stickers = 3 u - 25
(c)
Number of green stickers and red stickers
= 3 u + 3 u - 25
= 6 u - 25
(d)
Number of blue stickers
= 10 u - (6 u - 25)
= 10 u - 6 u + 25
= 4 u + 25
Answer(s): (a) 3 u; (b) 3 u - 25; (c) 6 u - 25; (d) 4 u + 25