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1)

a)

b) £68

c) 7 suits

2)

a)

b) £1,590

c) £1,270

d) 4 premium cars and 8 budget cars

3)

a)

b) £132

c) 35 miles

**Algebraic Formula: Quiz 2 - Answers**1)

a)

*e*= 10*h*+ 3*s*b) £68

c) 7 suits

2)

a)

*e*= 1000 + 20*b*+ 50*p*b) £1,590

c) £1,270

d) 4 premium cars and 8 budget cars

3)

a)

*c*= 20*d*+ 0.4*m*b) £132

c) 35 miles

**Working**

**Questions**

1) I work in a suit shop. I get paid £10 per hour that I work and £3 for every suit that I sell.

- Write an expression for the amount of money that I earn in a shift. Let
*e*be my earnings (in £),*h*be the hours that I work, and*s*be the number of suits that I sell - Find how much money I earn if I work for 5 hours and sell 6 suits
- I worked a 4-hour shift and earnt £61. How many suits did I sell?

2) I am a car sales man. I get paid a monthly salary of £1,000. I get a commission of £20 for every budget car that I sell. I get a commission of £50 for every premium car that I sell.

- Write an expression for the amount of money that I earn each month. Let
*e*by my earnings each month (in £),*b*be the number of budget cars that I sell and*p*be the number of premium cars that I sell. - Find out how much I make if I sell 12 budget cars and 7 premium cars.
- Find out how much money I make if I sell 3 premium cars and twice as many budget cars.
- I earn £1,360. I sell twice as many budget cars as I do premium cars. How many budget cars do I sell, and how many premium cars do I sell?

3) I hire a car. I pay £20 per day that I hire the car and 40p for each mile that I drive.

- Write down an expression for the cost of the car. Let the cost of the car (in pounds) be
*c*, the number of days be*d*and the number of miles be*m*. - Find out how much it is to hire the car for 5 days and to drive 80 miles.
- I hire the car for 3 days and it cost me £74. How many miles did I drive?