3x - 5 = 4
x = 3
The side of the square is 6 cm. Calculate the area and perimeter of the square.
Area = 36 cm2
Perimeter = 24 cmIf there are 6 boys and 3 girls in a class, what is the ratio of girls to boys in lowest form?
1:2
Abraham’s ruler is 22 centimetres long. Josh’s ruler is 30 centimetres long. How many centimetres longer is Josh’s ruler?
8 centimetres
Find ?
60
10x + 100 = 1000
x = 90
Find d
d = 60
Simplify the following ratio: 144:60
12:5
Boram wants to invite 20 friends to his birthday, which will cost his parents $300. If he decides to invite 15 friends instead, how much money will it cost his parents?
$225
Find the number that the car covered.
87
4x + 5y = 22
2x + 5y = 16
What's the value of x and y?
x = 3
y = 2
The perimeter of the triangle is 36. Find n
n = 4
A toy company can produce 9 toys in 3 hours. How many toys can they produce in 24 hours?
72 toys
A bus leaves the school to take students on a field trip. The bus travels 10 kilometres south, 10 kilometres west, another 5 kilometres south and 15 kilometres north. To return to the school, in which direction does the bus have to travel? How many kilometres must it travel in that direction?
10 km east
What's the value of the sad face?
7
6x + 7y = 31
3x + 5y = 17
What's the value of x and y?
x = 4
y = 1
Find the surface area of the rectangular prism
(Hint: 2lw + 2wh + 2lh)
Surface area: 72 cm2
If the ratio of chocolates to ice-cream cones in a box is 5:8 and the number of chocolates is 30, find the number of ice-cream cones
48
Cayley earns $5 an hour by delivering newspapers. She delivers newspapers 3 days each week, for 4 hours at a time. After delivering newspapers for 8 weeks, how much money will Cayley earn?
$480
Find the value of ?
35
x2 + 5x + 6 = (x + a)(x + b)
a) What is a?
b) What is b?
a) a = 2 or 3
b) b = 2 or 3
Find the value of x (Hint: Pythagorean theorem)
x = 8cm
Last week, Bill earned $210 for a 30-hour week. What was his earning per hour? What would he have earned for a 40-hour week?
$7 per hour, $280 for a 40-hour week
A High School randomly selected Grade 9, Grade 10, Grade 11, and Grade 12 students for a survey. Of students selected for the survey, 1/4 were freshmen and 1/3 were sophomores. Half of the remaining selected students were juniors. If 336 students were selected for the survey, how many were seniors?
70
Find ?
35