Question

question 1: the account contains 8700 dollars.
a) a 950 dollar check is deposited into the account. choose the calculation for the amount of money m in the account.
m dollars = 8700 dollars + 950 dollars
b) a d dollar check is deposited into the account. choose the mathematical model for the amount of money m in the account.
m dollars = d dollars + 8700 dollars
c) partially visible account. write the the mathematical model for the amount of money m in the partially visible
dropdown options related to students and years:
s students/year = y years × 31 students
s students = 31 students/year × y years
s students = 31 students/year ÷ y years
s students = y years + 31 students/years
another question section
a) partially visible the number of students s that ryoko teaches in 3 years.
dropdown with s s
b) partially visible the number of students s that ryoko teaches in y years.
dropdown
c) write the mathematical model for the number of students s that ryoko teaches in y years, leaving out the units. (you can use \*\ for multiplication and \/\ for division.)
s = 31 * y

Explanation:

Step1: Analyze account deposit logic

For part a) and b), the new account balance is initial amount plus deposited amount.

Step1: Analyze student count logic

For the student problem, total students = students per year × number of years.

Answer:

Question 1:

a) $\text{M dollars} = 8700 \text{ dollars} + 950 \text{ dollars}$
b) $\text{M dollars} = 8700 \text{ dollars} + \text{D dollars}$
c) (Assuming part c is a deposit of an unknown amount, e.g., $X$ dollars: $\text{M dollars} = 8700 \text{ dollars} + X \text{ dollars}$; the original c is cut off, but following the pattern of a/b)

Student Problem:

a) For 3 years: $S = 31 * 3$
b) The correct model from the dropdown: $\text{S students} = 31 \text{ students/year} \times \text{Y years}$
c) $S = 31 * Y$