Question 3 3.1 Write the following ratios in their simplest form
32:24:40
3.2 Divide Risoo in ratio of 2:3
3.3 in a year's time willem's mass increase in the ra
is 35kg What will his mass be this years' time?
3.4Write in scientific notification
3.41.1256 000 000
3.4.2.80 billion​

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in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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