Tim earns $12 per hour as head lifeguard at Sammy's Swim Park. As a first year lifeguard Jack earns 30% less than Tim, and as a second year lifeguard Jim earns $1 more per hour than Jack. Which expression represents how much Jim earns? (h represents hours)

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Mathematics

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31 October, 23:23

Tim earns $12 per hour as head lifeguard at Sammy's Swim Park. As a first year lifeguard Jack earns 30% less than Tim, and as a second year lifeguard Jim earns $1 more per hour than Jack. Which expression represents how much Jim earns? (h represents hours)

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Answers (1)

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Marlene Duarte · Answer 1

Tim = 12

Jack 1st = 12 - (12 x 0.30)

second year

Jim = 1 + x

Jack = x

12 - (12 x 0.30) =

12 - 3.6 = 8.4

Jack = $8.4 per hour

Tim = 8.4 + 1

Tim = $9.4 per hour