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Check it out!. 2.1.3: Solving Linear Inequalities. Luc received $50 from his grandparents for his birthday. He makes $75 each week as a cashier at the supermarket . Since his birthday, he has saved more than enough money to buy a game system that costs $450.

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Check it out

Check it out!

2.1.3: Solving Linear Inequalities


Luc received $50 from his grandparents for his birthday. He makes $75 each week as a cashier at the supermarket. Since his birthday, he has saved more than enough money to buy a game system that costs $450.

How many weeks ago was Luc’s birthday?

After purchasing the game system, will Luc have any money left over? How do you know?

2.1.3: Solving Linear Inequalities


How many weeks ago was Luc’s birthday? makes $75 each week as a cashier at

Set up and solve an inequality to find how many weeks ago Luc had his birthday.

50 + 75w > 450

75w > 400

Luc is paid for whole weeks of work, not partial weeks, so round up to the nearest whole week.

Luc has been saving for at least 6 weeks.

2.1.3: Solving Linear Inequalities


After purchasing the game system, will Luc have any money left over? How do you know?

If Luc saved his wages of $75 a week for 6 weeks, he would have saved $450 plus the $50 from his grandparents, for a total of $500.

The game system costs $450, so Luc would have $50 left after his purchase.

2.1.3: Solving Linear Inequalities


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