# Mathematics Project

## Mathematics Project

*Project – Basic Skills*

*Answer ALL questions, and submit this assignment physically to the teacher. Show the steps to receive full marks. *

- The cost of 5 of the same books is $20. What is the cost of 3 of these books? [2]
- A journey takes 4 hours to complete travelling at a speed of 60 miles per hour. How long will the same journey take travelling at 30 miles per hour? [2]
- What is the smaller share when $60 000 is divided in the ratio 7:5? [2] 4. Simplify the ratio 20 minutes : 2 hours. [2]
- Evaluate: 20 − 7 + 12 ÷ 3 × 6 [2]
- In a certain city the temperature in the morning was −5 °��. By midday the temperature rose by 12 °��. Calculate the temperature at midday. [2]
- Approximate 23.705 to:
- a) 2 decimal places
- b) 2 significant figures [2]
- Write each number in scientific notation.
- a) $23 500 000
- b) 0.0035 [2]
- Find the size of each angle marked with a letter.

*w x *

Give a reason for each answer. [4]47°