Unit 4 Review 2

Front

What expression gives the total cost of tickets for x students and y adults?

Back

(2x + 5y) - This expression represents the total cost where each student ticket costs $2 and each adult ticket costs $5.

Front

How many packages of hot dogs and buns does Jackie need to buy to serve guests with no leftovers?

Back

Jackie needs to buy 4 packages of hotdogs and 5 packages of buns to ensure there are no leftovers.

Front

If Mr. Delaney's class sells balloons for $1.75 each and receives $100 from the school, how much do they raise if they sell b balloons?

Back

The total amount raised is given by the expression 1.75b + 100.

Front

How many total hotdogs can Jackie serve if she buys the least number of packages with no leftovers?

Back

Jackie can serve 40 hotdogs if she buys the least number of packages of hotdogs and buns.

Front

What is the formula to calculate the total cost of tickets for students and adults?

Back

Total Cost = (Cost per Student * Number of Students) + (Cost per Adult * Number of Adults).

Front

Define 'variable' in mathematics.

Back

A variable is a symbol used to represent a number that can change or vary.

Front

What does 'evaluate' mean in mathematics?

Back

To evaluate means to calculate the value of an expression by substituting numbers for variables.

Front

What is the least common multiple (LCM) and how is it used in problem-solving?

Back

The LCM is the smallest multiple that two or more numbers share. It is used to find a common denominator or to solve problems involving equal groups.

Front

Explain the concept of 'no leftovers' in purchasing items.

Back

'No leftovers' means that the total number of items purchased should exactly match the total number needed, with none remaining.

Front

What is the significance of the expression 1.75b + 100 in the context of fundraising?

Back

This expression shows how the total funds raised depend on the number of items sold and any additional contributions.