answer:To solve this problem, we need to determine the value of x, which represents the number of postcards Tina can make in a day. Let's break down the information given: Number of postcards made in a day: x Amount earned per postcard sold: 5 Total amount earned in 6 days: 900 We can set up the equation as follows: Number of postcards made in a day * Amount earned per postcard * Number of days = Total amount earned x * 5 * 6 = 900 Let's simplify and solve for x: 5x * 6 = 900 30x = 900 To isolate x, we divide both sides of the equation by 30: 30x / 30 = 900 / 30 x = 30 The value of x is 30. 30 The answer is: 30

answer:Heather wants to earn 10 an hour, which means she wants to earn 10 / 60 minutes = 0.1667 per minute. She is paid 5 cents per weed, so she needs to pick 0.1667 / 0.05 = 3.3333 weeds per minute. Since there are 60 seconds in a minute, Heather can spend 60 seconds / 3.3333 weeds = 18 seconds picking each weed on average. 18 The answer is: 18

answer:To solve this problem, we need to determine the value of x, which represents the original price of the boots. We know that there is a discount of 20% on the original price. Therefore, the discounted price is 80% of the original price. We also know that the discounted price is 72. We can set up the equation as follows: 80% of the original price = 72 Let's simplify and solve for x: 0.8x = 72 To isolate x, we divide both sides of the equation by 0.8: 0.8x / 0.8 = 72 / 0.8 x = 90 The value of x is 90. 90 The answer is: 90

answer:Sara's sister had 4 small notebooks in her closet. She ordered 6 more notebooks, so she had a total of 4 + 6 = 10 notebooks. But then she lost 2 notebooks, so she now has 10 - 2 = 8 notebooks. 8 The answer is: 8