Mathematics Pie Charts - Homework

Draw the pie charts from the tables below. 1) 2) Activity Frequency Gym 6 Swimming 15 Squash 3 Aerobics Total 30 Type of Pet Frequency Cat 30 Dog 25 Rabbit 15 Other 20 Total 90

The pie chart shows how Jenny spends her monthly income. Jenny spends £150 a month on food. (a) Work out Jenny’s monthly income (b) Work out how much Jenny spends on rent each month. Hint: Put the angle in the pie chart over 360 (like a fraction), cancel down if possible and then relate it to the money Jenny has. 120º Food Rent Other Bills Savings Clothes & Going Out

Are you ready for the answers ? 4) In a town, 1800 cars were stolen in a year. The table show information about the times of day in which they were stolen. Time Number of cars Midnight to 6 am 700 6 am to midday 80 Midday to 6 pm 280 6 pm to midnight 470 Time unknown 270 This information can be shown on a pie chart. (a) Copy out the table below and work out the angles for each sector. Time Angle of sector Midnight to 6 am   6 am to midday Midday to 6 pm 6 pm to midnight Time unknown Total of angles 360º Are you ready for the answers ? (b) Construct the pie chart. (c) What fraction of cars were stolen between midday and 6pm. Write your answer in its simplest terms.

Answers to Q4 (a) and (c). (a) Angles: 700  0.2 = 140º 80  0.2 = 16º 280  0.2 = 56º 470  0.2 = 94º 270  0.2 = 140º (c) 280 = 7 1800 45