BA3020QA USING AND MANAGING DATA

Tony hires a van, and he is charged at the rate of £80 per 400km. Tony’s total travel cost was £360. How much distance did Tony travel in km? Show all your workings.

A car was advertised for sale at £12,600, which was only 80% of the original price. What was the original price before the discount? Show all your workings.

In January, an electronic shop retailer had increased the price of a laptop by 25% to £1,200. What was the price of the laptop before the price increase? Show all your workings.

There were 62 out of 71 workers recorded as present for a work shift at a factory in one day. The Male and Female workers that were absent were in the ratio 2:1. How many Male and Female workers were absent on the day? Show all your workings

The data in the table below shows the height of athletes in metres and their respective weights in kilograms

The equation of a line is given as y = 3x – 6 i) What is the gradient of the line? ii) What is the intercept of the line? iii)What is the value of x when y = 9? Show all workings. iv) What is the value of y when x = 3? Show all workings.

From the equation y = 70.35x – 32.49, find the exact value of y when: i) x = 0.19 ii) x = 6.24 iii) x = -0.983 iv) x = 72.199 v) x = -0.000087 vi) x = 4.598 Do not use Excel. Show all workings and the answers to 3 decimal places