7th Grade Math Test, Mod 2

James is a waiter at a fancy restaurant. Since he is such a good server, every table tips him 25% at the end of each meal. James also is paid at flat rate of $10 per table he waits. Which equation represents how much money James makes at each table, y, given the cost of the meal, x?

Carly and Sam bought two tickets for the upcoming Taylor Swift concert, but it turns out neither of them can go. Each ticket was $76. To get some money back, they decide to resell their tickets at 65% of their original price. How much money combined will Carly and Sam LOSE in total?

Mathematical Equivalence

ON

Answer explanation

Since each ticket is $76, then together they spent $152. 65% of $152 is $98.80. Therefore, they lost $53.20 in total.

Craig owns a business and marks up each product he sells by 32%. Write an equation that could be used to calculate the new price of Craig's product, y, given an original price, x.

Mathematical Equivalence

ON

Brad and Sarah are buying a new house, so they took a loan out from the bank for $315,000. The annual simple interest rate on the loan is 5.76%. Assuming Brad and Sarah only pay the interest, how much do they pay a month on this loan?

Mathematical Equivalence

ON

Muhammad makes $42,000 a year in gross annual income. He pays taxes at a flat rate of 22%. What is Muhammad's net income (income after taxes)?

Mathematical Equivalence

ON

Answer explanation

22% of $42,000 is $9,240, and subtracting that from the gross amount leaves Muhammad with $32,760 net income.

David owns $3,000 in NVIDIA stocks and makes 4.5% of that in dividends per year. How much money does David make in dividends per year?

Mathematical Equivalence

ON

Answer explanation

David makes $135 in dividends per year since 4.5% of $3,000 is $135.

Bob is a used car salesman. He earns a $35,000 annual salary, a 22% commission on each car he sells, $50 for every lead he generates for any sale. What equation can you use to find Bob's total earnings, y, for the year, where x is the total made in car sales and z is the number of leads he generates?

• y = 0.22x + 50z + 35,000

• y = 1.22x + 50z + 35,000

• y = 1.22x + 50z + 35,000x

• y = 1.22x + 1.50z + 35,000

Bob is a used car salesman. He earns a $35,000 annual salary, a 22% commission on each car he sells, $50 for every lead he generates for any sale. Bob sold $435,000 in cars this year and generated 55 leads. What was Bob's total income?

Mathematical Equivalence

ON

Interest is important to think about when we save up money. What are you saving up for? Draw it.

Due to inflation, the price of bananas has increased by 7.5%. A pack of bananas now costs $3.25. What was the original cost of a pack of bananas?

• $0.24

• $3.49

• $0.30

• $3.02