Defining Terms
What is the coefficient in this expression?
5y - 9
5
Joe has three times as many lollies as Karen.
let k = the number of lollies Karen has
Write an expression that shows the number of lollies Joe has.
3k
x + 24 = 80
56
8m2 + 6n - 4mn + 8 = 48
8 and 48
Zayn had five times as many pairs of shoes as Raj. Then he lost a pair at camp.
r = Raj's total pairs of shoes
5r - 1
2x - 2 = 16
9
What are the like terms in the expression?
- 5bc + 4b + 3b + 3c + 35
4b and 3b
Mike has half as many trading cards as Nick. Luckily, his friend gifted him 14 more cards.
Let n = the number of trading cards Nick has
Write an expression for the number of trading cards Mike has.
n/2 + 14
-5x + 17 = 47
-6
What are the pronumerals or variables in the equation?
4x + 3y = 20
x and y
Angle A and Angle B are supplementary.
Angle A is twice as large as Angle B.
Let.
a = angle A
b = angle B
Write an equation using only ONE pronumeral/ variable.
Bonus 100 points if you solve for A and B.
3b = 180
OR
3a/2 = 180
b = 60 a = 120
3x/ 4 + 7 = 28
28
How many terms are in the expression?
t2 + 2t - 3u + 5tu + 3w + 4xy + 5
7 terms
In London, the average temperature across June July and August was 24 degrees celsius.
June's average was 4 degrees cooler than July's. August's average was 2 degrees cooler than July's.
Write 3 equations using the information above.
a = June average temp
b = July average temp
c = August average temp
Bonus: find the average temp in June, July and August each.
a+ b+ c / 3 = 24
a = b - 4
c = b - 2
Bonus:
a = 22
b = 26
c = 24
b-4 + b + b -2 / 3 = 24
3b - 6 / 3 = 24
3b - 6 = 72
3b = 78
b = 26
a = 26 - 4
a = 22
c = 26 - 2
c = 24
2x2 + 4 = 36
4