11/5 Do Now

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal. It can be used to solve problems involving relationships between quantities.

Front

How do you set up a proportion for a word problem?

Back

To set up a proportion, identify the two ratios that are being compared in the problem, and write them as a fraction. Then, set the two fractions equal to each other.

Front

What is the formula for solving a proportion?

Back

The formula for solving a proportion is cross-multiplication. If a/b = c/d, then a*d = b*c.

Front

How can you determine the time it takes to complete a task based on a given rate?

Back

To determine the time it takes to complete a task, divide the total amount of work by the rate of work. Time = Work / Rate.

Front

If 3 pounds of apples cost $0.90, what is the cost per pound?

Back

The cost per pound is $0.30, calculated by dividing the total cost by the number of pounds: $0.90 / 3 = $0.30.

Front

How do you find the total cost for a different quantity using unit rate?

Back

To find the total cost for a different quantity, multiply the unit rate (cost per pound) by the new quantity.

Front

What is the relationship between time, rate, and work?

Back

The relationship is defined by the formula: Work = Rate x Time. This means that the amount of work done is equal to the rate of work multiplied by the time spent.

Front

How do you convert minutes into hours?

Back

To convert minutes into hours, divide the number of minutes by 60.

Front

What is the significance of setting up a proportion in problem-solving?

Back

Setting up a proportion allows you to compare two quantities and find unknown values based on known relationships.

Front

What is the first step in solving a word problem involving proportions?

Back

The first step is to read the problem carefully and identify the quantities involved and their relationships.