ALGEBRA
Simplify 8m - 6n - 3m + 6n
5m
The perimeter of a circle is called its
Circumference
Jalyssa buys a skirt for $47 and later sold it for $55. Calculate her profit made.
$8
Which of the following is a composite number?
3
7
2
10
10
Find the value of r if 5r – 4 = 3r + 6
r = 5
What is the perimeter of square with sides 5 cm?
20 cm
Joshua borrows $160 and has 6 months to repay at a rate of 5% per annum. Calculate the amount in interest to repay.
$4
What is the smallest prime number that is also a multiple of 3?
3
If a = 6, find the value of (3a + 2)/4
5
A rectangular field has an area of 480 m2. If its width is 80 m, what is its length?
60 m
A wristwatch costs $150 and is sold for $180. What is the profit made as a percentage?
20%
What are the prime factors of 10?
2 and 5
Make x the subject of the formula y = mx + c
(y - c)/m = x
A cereal box is 12 cm tall. The area of the base if 7 cm2. What is its volume?
84 cm3
At Harmony’s Fashion Store, there is a 10% sale storewide. Xio wants to buy a dress with a marked price of $120. Calculate the price she pays after the discount.
$108
Work out 63
216
Solve the linear inequality x – 3 < 3x – 7
x > 2
What is the volume of a milk can with diameter 6 inches and height 4 inches?
113.04 in3
The cash price of a stove was $520. Tanisha bought the stove on hire-purchase by making a down payment of $100, and 12 monthly payments of $40 each. How much could she save if she had bout the stove with cash?
$60
Work out the square root of 81 - the square root of 25
4