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Maths Exercices

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 distance that a spring will stretch varies directly as the force applied to the string. If a force of 20 lb is required to stretch a spring 4 in., and a force of 35 lb is required to stretch a spring 7 in., what is the constant of variation?