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At a grocery store, the price of a watermelon is determined by how many pounds the watermelon weighs. The price of a watermelon that weighs 7.3 pounds is $4.38.
Write an equation that can be used to determine the price, p, in dollars, of any watermelon based on the number of pounds, w, the watermelon weighs. Explain the process you used to determine the equation.
At a grocery store, the price of a watermelon is determined by how many pounds the watermelon weighs. The price of a watermelon that weighs 7.3 pounds is $4.38.
Write an equation that can be used to determine the price, p, in dollars, of any watermelon based on the number of pounds, w, the watermelon weighs. Explain the process you used to determine the equation.
The equation is p = 0.6w. To find the equation, we first need to find the price per pound. We can divide the price of the watermelon by the number of pounds it weighs: $4.38 / 7.3 pounds = $0.6 per pound. So the equation for the price, p, is the price per pound (0.6) times the number of pounds, w, or p = 0.6w
Omar and Caleb each had a repair made on their cars. The initial cost of each repair is $1,000. Omar and Caleb each have two coupons. Each of them uses both of his coupons toward the cost of the repair. One coupon is for $80 off the repair cost. The other coupon is for 15% off the repair cost. Omar and Caleb use their coupons in a different order, as shown below:
- Omar uses the $80 off the repair cost coupon first. He then uses the 15% off the repair cost coupon on the remaining balance.
- Caleb uses the 15% off the repair cost coupon first. He then uses the $80 off the repair cost coupon on the remaining balance.
Who paid the least amount of money for his car repair and how much less did he pay?
Omar and Caleb each had a repair made on their cars. The initial cost of each repair is $1,000. Omar and Caleb each have two coupons. Each of them uses both of his coupons toward the cost of the repair. One coupon is for $80 off the repair cost. The other coupon is for 15% off the repair cost. Omar and Caleb use their coupons in a different order, as shown below:
- Omar uses the $80 off the repair cost coupon first. He then uses the 15% off the repair cost coupon on the remaining balance.
- Caleb uses the 15% off the repair cost coupon first. He then uses the $80 off the repair cost coupon on the remaining balance.
Who paid the least amount of money for his car repair and how much less did he pay?
Caleb paid the least amount of money. Caleb paid $870, and Omar paid $880. That means Caleb paid $10 less than Omar.
A museum employee surveys a random sample of 350 visitors to the museum. Of those visitors, 266 stopped at the gift shop. Based on these results, about how many people out of 2,300 visitors to the museum would be expected to stop at the gift shop?
A museum employee surveys a random sample of 350 visitors to the museum. Of those visitors, 266 stopped at the gift shop. Based on these results, about how many people out of 2,300 visitors to the museum would be expected to stop at the gift shop?
About 1,690 visitors would be expected to stop at the gift shop.
Todd orders pictures from a photographer. Each picture costs $7.50. A one-time shipping fee of $3.25 is added to the cost of the order. The total cost of Todd's order before tax is $85.75. How many pictures did Todd order?
Todd orders pictures from a photographer. Each picture costs $7.50. A one-time shipping fee of $3.25 is added to the cost of the order. The total cost of Todd's order before tax is $85.75. How many pictures did Todd order?
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A car travels 30 miles in 1/2 of an hour. What is the average speed, in miles per hour, of the car?
A car travels 30 miles in 1/2 of an hour. What is the average speed, in miles per hour, of the car?
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A company starts to track the number of phone calls received each month. Information about the number of phone calls the company received the first three months of tracking is listed below:
- During the first month, the company received 4,264 phone calls.
- During the second month, the company received 25% more phone calls than in the first month.
- During the third month, the company received 6,396 phone calls.
What was the percent increase in the number of phone calls from the second month to the third month?
A company starts to track the number of phone calls received each month. Information about the number of phone calls the company received the first three months of tracking is listed below:
- During the first month, the company received 4,264 phone calls.
- During the second month, the company received 25% more phone calls than in the first month.
- During the third month, the company received 6,396 phone calls.
What was the percent increase in the number of phone calls from the second month to the third month?
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Study Notes
Probability and Statistics Problems
- Various problems involve a bag of marbles (white and yellow), with a given number of selections recorded.
- The questions ask for probability of selecting a white marble next.
- Probability is calculated by dividing the number of favorable outcomes (white marbles selected) by the total number of outcomes (total selections).
- Answers are rounded to the nearest percent.
Candy Prices
- A candy store sells caramels and milk chocolate.
- Prices are given per pound.
- The cost difference between a pound of milk chocolate and a pound of caramels is calculated.
Car Repair Costs
- Omar and Caleb each had car repairs.
- Each repair cost initially $1,000.
- Both used two coupons: one for $80 off and one for 15% off.
- The order in which coupons were used differed for each.
- The person who paid the least amount of money for the car repair is identified, along with the difference in cost.
Museum Visitors
- A museum employee surveyed 350 visitors,finding that 266 stopped at the gift shop.
- Based on this, the expected number of visitors out of 2,300 who would stop at the gift shop is approximately calculated.
Photographer's Picture Cost
- Todd ordered pictures from a photographer.
- Each picture costs $7.50.
- A one-time shipping fee of $3.25 was added.
- The total cost was $85.75.
- The number of pictures ordered is determined.
Average Speed
- A car traveled 30 miles in 0.5 of an hour.
- The average speed of the car is calculated in miles per hour.
Phone Call Numbers
- A company tracked phone calls received each month.
- The numbers for the first three months are given.
- The percent increase in phone calls from the second to the third month is calculated.
Watermelon Prices
- At a grocery store, a 7.3-pound watermelon costs $4.38.
- An equation is to be formulated to determine the price of any watermelon based on its weight.
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Description
This quiz covers a variety of real-world problems involving probability, pricing, and cost comparison. Explore scenarios from marble selection probabilities to car repair costs impacted by coupons. Test your understanding of statistics and basic math concepts through practical examples.
