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Find the constant of variation: word problems

Peter walked a total of 12 kilometres by making 2 trips to school. Later on, he walked 18 kilometres during 3 trips. How many kilometres does Reid walk per trip?

Create a chart. To find the constant of variation, divide "Total distance walked (kilometres)" by "Number of trips". The constant of variation is 6. The profit realized by a company varies directly as the number of products it sells. If a company makes a profit of 11312 on the sale of 707 products and a profit of 15888 on a sale of 993 products, what is the constant of variation?

Solution: