One pencil costs $x. One pen costs$(x + 20). One ruler costs $4x. 1. Vince bought 2 pencils, 3 pens and 1 ruler. How much did he spend? Simplify your answer in terms of x. 2. If x = 20, how much did Vince spend altogether? 4 m The perimeter of triangle A is equal to that of rectangle B. 1. Find the length of WX in terms of k. 2. If k = 3, find the area of rectangle B. 4 m The figure shows 2 rectangles. The length of the bigger rectangle is (6m + 8) cm and the breadth is half its length. Find the perimeter of the smaller rectangle. 4 m The cost price of a necklace was$9w. Dorothy decided to make 10% profit from the necklace. During a sale, a customer bought the necklace at a discount of 10%. What was Dorothy's loss?
4 m
Ali is b years old. Bill is four times as old as Ali and Calvin is 6 years younger than Bill.
1. Express Calvin's age in terms of b.
2. Ali is 10 years as of now. ln how many years' time will Calvin be 3 times as old as Ali?
4 m
Lina and Wendy went shopping. After Lina spent $85j, Wendy had 5 times as much as Lina. If Lina had$21j more than Wendy at first,
1. Express the amount of money that Lina had at first in terms of j.
2. If j = 10, find the amount of money the two ladies had left after shopping.
3 m
Abel has b coins. Bobby has three times as many coins as Abel but 8 coins fewer than Jason.
1. How many coins do they have altogether? (Express your answer in terms of b).
2. If b = 9, how many stamps do the three boys have altogether?
3 m
The total mass of Cindy, Jen and Marvin is 15p kg. Cindy has a mass of 5p kg. Jen is 2 kg heavier than Cindy.
1. What is Marvin's mass in terms of p?
2. If p = 10, what is Marvin's mass?
3 m
Sam saved $9 each day and Joelle saved$c more than Sam each day. After 2 weeks, they were still short of $30 to buy a TV set. 1. How much did the TV set cost? Express your answer in terms of c. 2. If c =$2, how much did the TV set cost?
3 m
Mrs Jensen paid a total of $38 for 3n pens and 4 markers. Each pen cost$2.
1. Express the cost of 1 marker in terms of n.
2. If n = 4, how much did each marker cost?
3 m