Question

Time (weeks) 10 15 25
Savings ($) 40 60 100
What is the constant of proportionality

Answer 1

The constant of proportionality is 4.

Explanation:

40 goes into 10 4 times. 40÷10=4

60 goes into 15 4 times. 60÷15=4

100 goes into 25 4 times. 100÷25=4

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