Addition Equations
7 + x = 9
x = 2
x - 6 = 18
x = 24
8x = 40
x = 5
x/5 = 7
x = 35
Write an inequality to represent the situation, A DVD costs more than $15.
x > 15
9 + x = 23
x = 14
17 = x - 8
x = 25
84 = 7x
x = 12
13 = x/3
x = 39
Graph the inequality x<-5
see slides
Solve 625 = 219 + x
x = 406
749 = x - 342
x = 1,091
2/5x = 10
x = 25
x/3 = 2/5
x = 1 1/5
Graph the inequality x is less than or equal to 3.75
see slides
12.35 = 4.85 + x
x = 7.5
5.8 = x - 3.35
x = 9.15
3/7 = 1/2x
x = 6/7
8.45 = x/6.32
x = 53.404
Which of the following is a solution to the inequality?
x -6 is greater than or equal to 2
6, 7, 8, 9, 10
8, 9, & 10!!
x + 3/5 = 4 1/4
x = 3 13/20
x - 7 1/3 = 2 5/9
x = 9 8/9
5.6x = 48.72
x = 8.7
4 6/8 = x/12
x = 57
A baker has 11 sticks of butter to make a cake that requires 2.5 sticks of butter. The inequality 2.5c ≤ 11 represents the number of cakes c the baker can make. How many cakes can the baker make?
4 cakes