Writing, reading, and evaluating algebraic expressions

Macy's mom gives her $100 for her birthday. She buys shirts that're $15 each and pairs of pants that're $25 each. Which expression can be used to calculate how much money she has left? (Use s for shirts and p for pants.)

• 100+15s+25p

• 100-15s+25p

• 100-(15s+25p)

• 100(15s+25p)

If g represents Edna’s grade, write an expression that shows she earned 5 points extra credit?

Jaidyn's dog eats 3 cups of food per day. 

• 3 + d

• 3 - d

• 3d

Samantha sells two types of wristbands, rope or beaded. She charges more for beaded wristbands than for rope wristbands. The amount of money, in dollars, that she collects from selling x wristbands of one type and y wristbands of the other type can be modeled by the expression 5x+8y

What does the variable y represent in this situation?

• the number of rope wristbands sold

• the number of beaded wristbands sold

• the selling price of one rope wristband

• the selling price of one beaded wristband

Tags

A.SSE.1a

The school is having a dance. Seniors have to pay $6 for a ticket and freshman have to pay $10 for a ticket. The total amount paid by all seniors and freshman can be represented by the expression 6s + 10f. What does the variable "f" represent in this problem?

• Total number of students at the dance

• Number of seniors that purchased a ticket

• Number of freshman that purchased a ticket.

• The total number of tickets sold.

In a variable expression, when you see variable and a number right beside each other, it means...

• that the expression cannot be solved.

• they will need to be multiplied.

• they will need to be added.

• they will need to be subtracted.

Translate the following phrase into a linear expression: The quotient of a number and 3, minus 2.

• x/3 - 2

• x/3 + 2

• x/3 * 2

• x/3 / 2

A paper needed for a project is 36 inches long. It needs to be split up between s students. Write an expressions that shows how long each piece of paper will be.

Which situation matches the algebraic expression?

2n

• The situation that matches the algebraic expression 2n is when a number is subtracted from 2.
• The situation that matches the algebraic expression 2n is when a number is added to 2.
• The situation that matches the algebraic expression 2n is when a number is divided by 2.
• The situation that matches the algebraic expression 2n is when a number is multiplied by 2.

A number next to a variable means? example: 2y

• add

• subtract

• multiply

• divide