The weekly salary y of an individual is proportional to the number of hours x worked. A person who works 40 hours is paid $900. Write an equation that represents the situation. Then determine how many hours the individual worked if the amount paid is $630.
1 answer:
The individual should work 28 hours to earn $630 at a rate of $22.50 per hour. Direct variation formula is y = kx; Where y directly varies on the changes of x with the constant ratio of k. We need to first get the k or constant rate. y = kx 900 = k (40) k = 900 / 40k = 22.50 this is the rate per hour To check: 900 = 22.50 * 40 900 = 900 y = 22.50x 630 = 22.50x x = 630 / 22.50x = 28 hours. To check: 630 = 22.50 * 28 630 = 630
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