Grade 12 Mathematics Review Quiz

Solve the following system of linear equations: 2x + 3y = 8 and 4x - y = 5

• The solution to the system of linear equations is x = 3 and y = 1.

• The solution to the system of linear equations is x = 4 and y = 3.

• The solution to the system of linear equations is x = 1 and y = 4.

• The solution to the system of linear equations is x = 2 and y = 2.

Find the solution to the system of linear equations: 3x - 2y = 7 and 5x + 4y = 11

• x = -1, y = 4

• x = 5, y = 2

• x = 2, y = 3

• x = 3, y = -2

Simplify the following fraction: 5/8 + 3/4

• 7/8

• 2/3

• 11/8

• 1/2

Convert the mixed number 2 1/3 to an improper fraction

• 7/3

• 5/2

• 4/3

• 3/7

If the ratio of boys to girls in a class is 3:5, and there are 24 students in the class, how many boys are there?

• 12

• 9

• 18

• 15

If 4 mangoes cost $6, how much will 8 mangoes cost?

• $8

• $12

• $18

• $24

A person earns $500 per week. How much do they earn in a year?

• $26,000

• $15,000

• $10,000

• $40,000

If a bill is $75 and you want to leave a 15% tip, how much should you tip?

• $20.00

• $10.00

• $11.25

• $5.00

The total bill at a restaurant is $85. If you want to split the bill equally among 5 people, how much does each person owe?

• $20

• $15

• $17

• $25

If a bill is $120 and you want to leave a 20% tip, how much should you tip?

• $10

• $30

• $50

• $24