Vocabulary/ word translation
What is the difference between and expression and an equation?
expression: no equal sign
equation: equal sign
8c - 5c
3c
9(4+ 5b)
36 + 45b
3(n +4n + 5) = 45
n=2
Write an equation to represent:
Tony eared six times as much money as Steve. Tony earned $240.
6s = 240
What is a constant?
The number not attached to a variable.
For example: 3 + n
3 is the constant
4h + 8h - 9r + 14
12h - 9r + 14
3(5 + 4 + 3y)
27 + 9y
63 ÷ k = 7
k = 9
Write an equation to represent:
Sam is 4 inches taller than Cameron. Sam is 42 inches tall.
4 + c = 42
What is the term in the following expression?
7x + 19
7x
9y + 4z - 3x
9y + 4z - 3x
x(7 + 8z)
7x + 8xz
5x - 15= 40
x= 11
Write an equation to represent and solve:
Paul has 12 times as many chickens as Peter. Paul has 144 chickens
12p = 144
p= 12
Word translation:
The quotient of c and 9
c/9
30d - 14d + 17
16d + 17
8a + (4 + 6a)
14a + 4
3(5b – 3b + 4) = 60
b= 8
Write an equation to represent and solve:
A twenty foot long piece of wood is cut into equal pieces. Each piece is 10 feet long.
20 ÷ w = 10
w= 2
20 more than the product of f and 7
7f + 20
11 + 16b - 15a + 17a + 2b - 5
6 + 2a + 18b
x + 7(3x + 6)
22x + 42
4(6c – 2c + 10) = 104
c=4
Write an equation to represent and solve:
The Red Sox scored 140 runs this season and they played 70 games.
140 ÷ r = 70
r = 2