Mathematics Revision 2

If  $y\ =\ 3w\ -\ a$  , then  $w$  is equal to

 $w\ =$ 

•  $w=\frac{y}{3}+a$  

•  $w=y+\frac{a}{3}$  

•  $w=\frac{y+a}{3}$  

•  $w=\frac{y-a}{3}$  

Which of the following inequalities BEST represents the statement below?

Twenty-two more than four times a number is at most 82.

• 22 + 4n ≤ 82

• 22 + 4n > 82

• 82 + 22n ≥ 4

• 22 + 4n < 82

Given -4x + 14 ≤ 54, the range of values of x is

• x ≥ -10

• x ≤ -10

• x ≥ 10

• x ≤ 10

6(a + b) - 7(a -b) =

• 13b - a

• -a - b

• 13a - 13b

• 13b

The graph of the inequality in the following diagram is defined by

• $-1<x\le4$
  

• $-1\le x\le4$

• $-1\le x<4$

• $-1<x<4$

A piece of rope 144 cm long is divided in two pieces in the ratio 3:5. What is the length of the shorter piece?

• 28.8 cm

• 38 cm

• 54 cm

• 90 cm

Jane and John are sharing money in the ratio 3:2. If Jane has $90, how much money does John have?

• $30

• $50

• $60

• $95

A boutique is offering a 15% discount for cash. What is the selling price for a dress with a marked price of $125?

• $18.75

• $106.25

• $110

• $143.75

A watch was sold for $3250 at a profit of 25% on the cost price. The cost price was?

• $2437.5

• $2600

• $3000

• $3050

A table is sold on hire purchase. The sale price consists of a deposit of $306 and six monthly installments of $60 each. How much does a customer pay for the table?

• $360

• $366

• $666

• $966