Write an Equation or Expression from Word Problems

Lindsay had $40. She works at the grocery store and earns $15 each day.
Which equation shows the relationship between Lindsay's savings (y) and the number of days Lindsay works (x)?

• y = 15x + 40

• x = 15y + 40

• y = 40x + 15

• y = 40 - 15x

Ms. Henriquez's brother Alvaro is 5 years older than twice Ms. Henriquez age. Write an expression that represents the relationship of max's age in terms of Ms. Henriquez's age, x.

• 5x + 2

• 2x + 5

• 10x

• 2 + 7 + x

For a show, a band will be paid $150 plus $5 for each ticket sold.  Write an equation for their total payment (p) related to the number of tickets they sell (t).

• p = 150 + 5t

• p = 5 + 150t

• p + 5t = 150

• 5t - 150 = p

Translate the expression.
8 less than y

• 8 - y

• y ÷ 8

• 8 ÷ y

• y-8

A cell phone company charges $40 per month plus a $35 activation fee. What is the expression for the total cost for m months?

• 40 - 35m

• 40m - 35

• 40m + 35

• 40 + 35

Tim buys three 6-packs of apple juice boxes and five 4-packs of cranberry juice boxes for his party. Write an expression to match the words.

• 6 X 4

• (3 × 6) + (5 × 4)

• (3 + 6) X (5 + 4)

• 3 + 6 + 5 + 4

Sarah has $40 in her lunch account and pays $2 each day to eat lunch.
Which expression below could be used to represent the total amount of money in Sarah's account after x days?

• 40 + 2x

• 40 - 2x

• 2 + 40x

• 2 - 40x

Students brought in 300 canned goods for the food drive on Monday. On Tuesday students brought in x more than the day before. Write an expression for how many canned goods students brought on Tuesday.

• 300 + x

• 300 - x

• 300x

• x - 300

Tickets to the aquarium cost $27 per person. Write an expression to represent the total cost of tickets for a group of people. Let n represent the number of people in the group. What are the important parts of this problem that can help you write an algebraic expression?

• The aquarium is a fun place to go.

• Tickets cost $27 per person

• n stands for the number of people in the group

• I am trying to find the total cost of tickets for the whole group

• This is an algebra problem.

Mary baked some cookies on Saturday. On Sunday she baked twice as many cookies as the day before. If c represents the number of cookies she made on Saturday, write an expression for the number of cookies she made on Sunday.

• c + 2

• c - 2

• c / 2

• 2c