Question

1.The cost to run an ad in a newspaper is $10 plus $0.25 per word. What is the maximum number of words Mrs. Kiehl can put in her ad if the most she can spend is $15?

2.You spent $70 for a program to help you develop a phone app. You can sell the app for $5 per download. You want to earn a profit of at least $1000. What is the minimum number of downloads you need?

3.You have $500 to buy a new gaming system. The system costs $250, and each game costs $60. What is the most games you can buy?

4.Frank has at most $60 to spend on clothes. He wants to buy a pair of jeans for $22 and spend the rest on shirts which cost $8 each. What is the maximum number of shirts he can buy?

Answer 1

To find the maximum number of words in Mrs. Kiehl's ad, we need to calculate the number of words she can afford based on her budget. The cost of the ad is $10 plus $0.25 per word. By setting up and solving an inequality, we find that the maximum number of words she can put in the ad is 20.

Step-by-step explanation:

To find the maximum number of words Mrs. Kiehl can put in her ad, we need to calculate the number of words that she can afford based on her budget. The cost of the ad is $10 plus $0.25 per word. Let's assume Mrs. Kiehl can put x words in her ad. So, the equation that represents the cost is $10 + $0.25x. We know that the most she can spend is $15, so we can set up the inequality $10 + $0.25x ≤ $15. To solve the inequality, we subtract $10 from both sides to isolate the x term, giving us $0.25x ≤ $5. Then we divide both sides by $0.25 to solve for x, which gives us x ≤ 20. Therefore, the maximum number of words Mrs. Kiehl can put in her ad is 20.