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Laura makes $9 per hour working at Starbucks. She can also expect to make an additional $3 in tips for one day. It
costs Laura $48 to fill up her car with gas. What is the minimum number of hours she needs to work in a day to
make $48?

Respuesta :

luckyfriskfc

Answer:

5 Hours

9×5 = 45

plus the $3 tip is 48.

hope this helped:))

Laura needs to work 5 hour in a day to make $48.

What is Unitary Method?

'The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.'

According to the given problem,

Amount Laura makes per hour = $9

Amount Laura receives as tip = $3

Amount Laura needs to fill up her car with gas = $48

Since, 45 is the closest multiple of 9 to 48,

Let, the number of hours Laura has to work be x,

⇒ 9x = 45

⇒ x = 45/9

⇒ x = 5

Since, she will receive an additional tip of $3,

= $( 45 + 3 )

= $48

Hence, we can conclude, Laura has to work a minimum of 5 hours to make $48.

Learn more about Unitary Method here: https://brainly.com/question/23423168

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