At the zoo, there are 20 flamingos. if 7 of the them are white and the rest are pink, how many are pink?
13 are pink
100
2.1 + x = 4.2
x = 2.1
200
3 + g = for g = 14
17
200
7p - 9 = for p = 3
12
200
The product of 5 and a number.
5 x n or n x 5 or 5n
200
Rhonda is 4 years younger than Jonah.
Use j for Jonah. What is the algebraic expression?
j - 4
200
3.4 - p = .4
p = 3
300
19 - w = for w = 4
15
300
2x + 1 = for x = 7
15
300
A number minus 2
n - 2
300
Elena is 4 years older than Juan. Use j for juan.
What is the algebraic expression
4 + j or J + 4
300
5.7 + x = 10
x = 4.3
400
7x = for x = 8
56
400
6t - 3 = for t = 8
45
400
15 less than a number
n - 15
400
There are 16 ounces in a pound. Write an algebraic expression showing how many ounces are in f pounds.
16 x f or f x 16 or 16f
400
12 x n = .36
n = .03
500
p
_
3 = for p = 9 and p = 21
3 and 7
500
5b - 11 = for b = 3
4
500
The difference between a number and 8
n - 8
500
A unit of time in music is called a measure. The number of beats varies from song to song. In the song "America" there are 3 beats per measure. How many beats are in 8 measures?