5.4B Variables

Front

What is a variable in mathematics?

Back

A variable is a symbol, often a letter, that represents a number that can change or vary.

Front

What does the equation ta = (15 x 6 + 50) ÷ 4 represent?

Back

It represents the total amount of money donated divided equally among 4 families.

Front

How do you calculate the total number of cookies displayed on shelves?

Back

You add the number of sugar cookies to three times the number of sugar cookies, then divide by the number of shelves.

Front

What is the purpose of using equations in word problems?

Back

Equations help to represent relationships between quantities and solve for unknown values.

Front

What does the equation h = 60 - (9 x 5) represent?

Back

It represents the number of hours Valerie still needs to complete her community service after working 5 hours for 9 days.

Front

How do you find the number of broken jars Rita threw away?

Back

You can use the equation (4 x 12) - b = 45, where b is the number of broken jars.

Front

What is the total number of tacos made at Taco Rojo in 12 hours?

Back

You calculate it using the equation (72 + 54 + 28) x 12.

Front

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

Back

Identify the known quantities and what you need to find.

Front

What does the term 'equation' mean?

Back

An equation is a mathematical statement that asserts the equality of two expressions.

Front

What is the significance of the number 60 in Valerie's community service problem?

Back

It represents the total hours she needs to complete for her service badge.