Mel wants to buy a pair of shoes that costs $120. She has saved $45 and has a job that pays her $10 per hour. The number of hour s she has to work to have enough to buy the shoes is given by the inequality 10x + 45 > 120, where x is the number of hours she works.
2 answers:
Answer:
The solution for the inequality is x = (7.5,∞).
Mel needs to work more than 7.5 hours to buy a pair of shoes that costs $120.
Step-by-step explanation:
10x + 45 > 120<em> //substract 45 in both sides of the inequality.</em>
10x + 45 - 45 > 120 - 45
10x > 75
(10/10)x > 75/10<em> //divide by 10 both sides of the inequality.</em>
x > 7.5
120-45=75
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