How would I do this?
You work at a public golf course. You have a budget of $300 for supplies for the month. A. The golf course can buy golf balls at a price of $0.80 each. Write an inequality that states the number of golf balls you can buy at this price and still have $200 left in your budget for other items.
I know that I can buy 125 golf balls at .80 each and still have $200 left. How would I write this?
Have you learned about what inequalities are?
Would it be correct if I wrote it like: 0.80x = 100
Let \(n\) represent the number of golf balls: I got 300 from: "You have a budget of $300 for supplies for the month." I got 200 from: "Write an inequality that states the number of golf balls you can buy at this price and still have $200 left in your budget for other items." \[300 - 200 = 100\] \[0.80n \le 100\]
I suppose thats is right...it looks right. It is a little confusing. .80n <= 100
or maybe .80n <= 300 - 200 ??
\[\ge~ =\text{ Greater than or equal too.}\] \[\le~ = \text{Less than or equal too.}\] \[>~ =\text{Greater than.}\] \[<~ =\text{Less than.}\] If we used greater than we would be "in the hole". We need to have 200 left so we cannot use greater than, we can only use greater than or equal too.
*less than or equal to.
I got it
Check out this link to have a better idea: Constructing and solving one-step inequality: https://www.khanacademy.org/math/algebra/linear_inequalities/inequalities/v/inequalities
There is another part to this: After buying golf balls, you have $200 left over. Now you need to buy a few replacement golf clubs. You can get these for $22 each. Write an inequality and solve it to find the maximum number of golf clubs you can buy and still have $40 left over in your budget. Would the inequality be 22x <= 40
Or would it be 22x <= 160
22x <= 160
Close... After buying golf balls, you have $200 left over. Now you need to buy a few replacement golf clubs. You can get these for $22 each. Write an inequality and solve it to find the maximum number of golf clubs you can buy and still have $40 left over in your budget. Let \(n\) represent the number of golf clubs: \[200 - 40 = 160 \] (160 is the total we can spend.) \[22n \le 160\]
We need to have 40 left over, so: 200 - 40 = 160 That is where the 160 comes from, do you understand?
Join our real-time social learning platform and learn together with your friends!