Finding the best deal on pesticides | Introduction to algebra | Algebra I | Khan Academy

TL;DR

Determine the brand of pesticide that provides the highest amount of active ingredient per dollar.

Transcript

A farm supply store carries four different brands of pesticide. Each brand sells pesticide of a different concentration. And each brand also has a different size of bottle. So here we have the different brands, they give us the bottle size, the concentration, so that's the percentage of this fluid volume that is actually pesticide that's actually a... Read More

Key Insights

• 🍼 Different pesticide brands vary in concentration, bottle size, and price, affecting the amount of active ingredient per dollar.
• 👻 Calculating the active ingredient per dollar allows for a comparison of pesticide brands and their cost-efficiency.
• 👣 Keeping track of units, such as milliliters per dollar, ensures accurate analysis and decision making.
• 👋 Brand B provides the highest amount of active ingredient for the price, making it the best choice for maximizing the pesticide's effectiveness and cost-effectiveness.
• 🧑‍🏭 Considering factors beyond just price, such as active ingredient concentration, is crucial in selecting the most efficient pesticide option.
• 🇨🇷 The analysis showcases the importance of conducting cost-benefit analyses when purchasing products with varying concentrations and sizes.
• 💰 Understanding how to calculate the active ingredient per dollar helps consumers make informed decisions when buying pesticides.

Questions & Answers

Q: What factors should be considered when choosing a pesticide brand?

When selecting a pesticide brand, the concentration of the active ingredient, bottle size, and price per bottle should be taken into account. It is important to maximize the active ingredient per dollar.

Q: How is the active ingredient per dollar calculated?

To calculate the active ingredient per dollar, divide the milliliters of active ingredient per bottle by the price per bottle. This ratio represents the value one gets in terms of active ingredient for each dollar spent.

Q: Why is it necessary to keep track of the units?

Keeping track of the units, such as milliliters per bottle and milliliters per dollar, ensures accurate comparison and clear understanding of which brand offers the highest active ingredient concentration for the price.

Q: Which brand provides the most active ingredient per dollar?

Brand B offers the highest milliliters per dollar, with a ratio of 12.5 milliliters per dollar. This makes it the best deal in terms of getting the most pesticide for the price.

Summary & Key Takeaways

• A farm supply store carries four different brands of pesticide with varying bottle sizes, concentrations, and prices.

• The goal is to identify the brand that offers the most active ingredient per dollar spent.

• By calculating the active ingredient per bottle and dividing it by the price, the brand with the highest milliliters per dollar is determined.