Word Problems Involving Basic Algebra

This lesson covers algebraic expressions where letters represent numbers. It includes practical examples of using variables in expressions and equations, solving word problems involving height and age, and exploring multiplication and division with variables. The lesson concludes with a summary and homework instructions.

What does the variable X represent in the expression 6 + X = 10?

• The number 4

• The number 6

• The number 10

• The number 16

If X is 6, what is the result of 7 - X?

• 1

• 7

• 13

• 0

What is the value of 6 squared?

• 12

• 36

• 18

• 30

In the lemonade stand scenario, how much money does Lynn make if she sells 2 cups?

• $0.50

• $1.00

• $1.50

• $2.00

How many cups did Lynn sell if she collected $127.50?

• 150

• 127

• 200

• 255

If Elena is 59 inches tall, how tall is Andre who is 4 inches taller?

• 64 inches

• 59 inches

• 63 inches

• 55 inches

Noah is 5 and 3/4 inches taller than Elena. If Elena is 59 inches tall, how tall is Noah?

• 60 inches

• 63 inches

• 65 inches

• 64 and 3/4 inches

If Claire is 5 years older than her cousin, and her cousin is 10 years old, how old is Claire?

• 10 years

• 15 years

• 12 years

• 5 years

Claire is 12 years old. How old is her cousin if Claire is 5 years older?

• 5 years

• 7 years

• 12 years

• 17 years

Diego has three times as many comic books as Han. If Han has 6 comic books, how many does Diego have?

• 18

• 12

• 6

• 24