Evaluating Algebraic Expressions in Topic 4-1

The video tutorial covers writing and evaluating algebraic expressions through various practical examples. It begins with an introduction to algebraic expressions, followed by solving problems related to an automatic dog feeder, bank account balance, cost calculation for almonds and cashews, rental costs for scooter and watercraft, Malik's earnings and expenses, and Ailia's job pay. Each section emphasizes the use of algebraic expressions to solve real-world problems, highlighting the importance of understanding mathematical operations and expressions.

What is the algebraic expression to determine the amount of food left in the feeder after d days if an automatic dog feeder dispenses 2/5 cups of dog food each day from a total of 20 cups?

• 20 / 2/5d

• 20 * 2/5d

• 20 + 2/5d

• 20 - 2/5d

Tags

CCSS.HSA-SSE.A.1A

Mumi started with $217 in her bank account and deposits $25.50 each week. What expression can she use to determine her account balance after W weeks?

• 217 - 25.50W

• 217 + 25.50W

• 217 * 25.50W

• 217 / 25.50W

Tags

CCSS.6.EE.B.6

How much would it cost to buy 1.5 pounds of almonds and 2.5 pounds of cashews if the cost is given by the expression 9.99D + 12.99C?

• $50.00

• $47.46

• $45.00

• $49.99

Tags

CCSS.HSA-SSE.A.1A

What is the total cost to rent a scooter for 3.5 hours and a watercraft for 1.75 hours if the cost is given by the expression 15.5S + 22.8W?

• $94.50

• $95.00

• $92.50

• $93.00

Tags

CCSS.6.EE.A.2C

Malik and two friends earn M dollars and split the earnings equally. Malik spends $32.50 on lunch each week. What expression represents Malik's remaining money after spending on lunch?

• M/3 + 32.50

• M/3 * 32.50

• M - 32.50

• M/3 - 32.50

Tags

CCSS.HSA-SSE.A.1A

Aelia earns $8.75 per hour plus a daily gas allowance of $3.50. How much does she earn in a day when she works 5.5 hours?

• $52.00

• $50.00

• $51.63

• $53.00

Evaluate the expression 4V when V is 2.

• 2

• 4

• 8

• 6

Tags

CCSS.6.EE.A.2C

Evaluate the expression K + 2 when K is 8.

• 10

• 8

• 12

• 6

Tags

CCSS.6.EE.A.2C

Evaluate the expression 6K + 9 when K is 0.

• 9

• 6

• 0

• 15

Tags

CCSS.6.EE.A.2C

Manny has G gumballs. Emy has three fewer gumballs than Manny. What expression represents the number of gumballs Emy has?

• G * 3

• G - 3

• 3 - G

• G + 3

Tags

CCSS.6.EE.B.6