Question

Sally works at a restaurant where she earns $23 per hour. David is a tradesman and earns $50 plus $18 per hour. Find the number of hours worked for which Sally and David earn the same amount.

Answer 1

Answer:

23 hours

Step-by-step explanation:

So you have to add the $50 and $18 to get $68. Now you have to find the lowest common multiple (LCM) of 68 and 23. The LCM of 68 and 23 is $1564. Which is 23 hours

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Answer 2

Answer:

10 hours.

Step-by-step explanation:

Let the number of hours be x, then:

23x = 50 + 18x

23x - 18x = 50

5x = 50

x = 10 hours.