5.01 Working with ratios
Express the following ratios as word statements:
Write a numerical ratio for the following:
For each of the following diagrams:
Write the ratio of shaded squares to non-shaded squares.
Write the ratio of shaded squares to total squares.
For each of the following diagrams:
Write the ratio of shaded sectors to non-shaded sectors.
Write the ratio of shaded sectors to total sectors.
Express each pair of quantities as a ratio:
\$5 to \$7.
47 volts to 43 volts.
13 minutes to 17 minutes.
37 lollies to 17 lollies.
5 seconds to 26 seconds.
13 newtons to 29 newtons.
15 oranges to 76 oranges.
130 days to 171 days.
A bridge is made up of 3 lengths: PQ, QR and RS as shown in the figure:
Find the total length of the bridge.
Write the lengths of PQ to RS as a ratio.
Write the lengths of PQ to PS as a ratio.
Write the lengths of PQ to QR to RS as a ratio.
In a bag there are 20 marbles. If there are 5 green marbles, 6 blue marbles, 2 red marbles and 7 yellow marbles. Find the ratios of the coloured marbles below:
Write each of the following statements as a simplified ratio:
There are 11 cats to 6 dogs.
In a classroom there are 12 girls to 5 boys.
When making pasta, you need 5 cups of plain flour to 8 eggs.
There are 3 red marbles to 2 blue marbles.
The Great Dane weighed two times as much as the Labrador.
In a working day, a bricklayer lays 50 bricks every hour.
Express each pair of quantities as a simplified ratio:
9000 metres to 8 kilometres
\$1 to 31c
2 centuries to 409 years
31 minutes to 2 hours
6 minutes to 659 seconds
43 weeks to 1 year
37 months to 2 years
13 hours to 5 days