Question

Trudy’s ice cream shop offers two sizes of ice cream: single scoop and double scoop. On her best day of the year, Trudy sold 256 single scoops and 312 double scoops. If s represents the price of a single scoop and d represents the price of a double scoop, which of the following equations can be used to model the amount of money (T) Trudy’s ice cream shop made on her best day?A.
T = 312s + 256d
B.
T = 256s + 312d
C.
T = 568sd
D.
T = 56sd

Answer 1

answer choice B. is the cprrect answer because it is multiplying the price of a single scoop (s) by 256 (the number of single scoops sold) and the price of a double scoop (d) by 312 (the number of doubl scoopd sold. to equal the total amount of money made that day (T).

Answer 2

“Trish has a jug of contaminated water that she knows is only 75% clean. She also knows that the water will be safe to drink if she can mix it with 100% clean water so that it is 97% clean. How much clean water (100% clean) would Trish need to mix with the contaminated water in order to get 1 gallon of drinkable water?”

A student used the following system of equations to model the situation given above. Which of the statements is true about the system of equations the student used?

Answer 3

A.
The system of equations the student used is correct.
B.
The top equation in the system is incorrect.
C.
The bottom equation in the system is incorrect.
D.
Both equations in the system are incorrect.