number and variable joined by operations
Expression
what are the like terms in this expression:
x2 + y2 + xy2 +y2x + 2x2
x2 , 2x2 , xy2, y2x
(-2x)3
-8x3
if a = 2 and b = -5, the expression 2+ab2 evaluates to:
52
The constant is x2 + 3y2 -2x2y -3 +2y2
-3
An unknown value that is represented by a letter or symbol
Variable
Solve x2 = 36
x=6 and x=-6
Simplify the following expression:
2(3x + 4) + 3(4x – 7)
6x+8+12x-21=18x-13
Find the HCF of: 30x and 24
6
Write 88% as a decimal.
0.88
two expressions joined by an = sign
equation
write 72% as a fraction in lowest terms.
18/25
8x2y2(3xy)
24x3y3
write 1.16 as a percentage.
116%
Find a prime factorization of 100
22 X 52
the number factor of an algebraic term
coefficient
Solve the following equation:
3h + 8 = 29
h=7
5(-3x)2
45x2
When buying h 60 cent stamps, the change from $10 is:
(10-0.6h) dollars
A cake stall had 20 muffins. n customers bought 2 muffins each, then a new batch of m muffins arrived. How many muffins does the stall now have?
(20-2n)+m
Jose is going bowling with friends. Shoe rental costs $3.50 and a game of bowling cost $4.50. If Jose has $20, and must rent shoes, how many games can Jose bowl?
Jose can play a maximum of 3 games with $3 still remaining.
Solve the following equation: 7y + 12 = 4y – 15
y=-9
-2a2b x (-b)2 simplifies to:
-2a2b3
The kinetic energy of an object is given by 0.5mv2 joules, where m is the mass of the object in kg, and v is its speed in m/s.
what is the kinetic energy of a 10 kg dog running 3 m/s?
45 Joules
5 x a + 3 x b + c + c written in product notation is:
5a +3b + 2c