Expressions Unit 4 comparisons

Front

What is a comparison in mathematics?

Back

A comparison in mathematics is a way to show how two or more quantities relate to each other, often using terms like 'more than', 'less than', or 'equal to'.

Front

If a book costs $24 and is six times as much as another book, how do you find the cost of the other book?

Back

To find the cost of the other book, divide the cost of the first book by 6. So, $24 ÷ 6 = $4.

Front

What does it mean if one quantity is 'twice as many' as another?

Back

It means that the first quantity is two times the second quantity.

Front

How do you solve a problem involving ratios?

Back

To solve a problem involving ratios, set up a proportion based on the relationship between the quantities and solve for the unknown.

Front

If Frank spent 48 tickets on rides and spent 6 times as many on rides as on games, how do you find the tickets spent on games?

Back

Divide the tickets spent on rides by 6. So, 48 ÷ 6 = 8 tickets on games.

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows how many times one value contains or is contained within the other.

Front

If there are 21 adults in line and that is three times the number of children, how do you find the number of children?

Back

Divide the number of adults by 3. So, 21 ÷ 3 = 7 children.

Front

What does it mean if Oliver has 10 dimes and 2 quarters?

Back

It means he has 10 times as many dimes as quarters, since 10 ÷ 2 = 5.

Front

If Jimbo has twice as many shirts as Lambo and Lambo has 26 shirts, how do you find Jimbo's shirts?

Back

Multiply the number of shirts Lambo has by 2. So, 26 × 2 = 52 shirts.

Front

What is the formula to find the total cost if one item costs six times another?

Back

Total cost = Cost of the cheaper item × 6.