Question

Plz Help

Milly has $83.50 in her savings account. She deposits $15 every week. Her mother also deposits $10 into the account every time Milly washes the car. Her savings account balance can be shown with the following expression: 10c + 15w + 83.50
Part A: Identify a coefficient, a variable, and a constant in this expression.

Part B: If Milly saves for 15 weeks and washes the car 4 times, how much will she have in her account? Show your work to receive full credit.

Part C: If Milly’s mom deposited $20 after each car wash, would the coefficient, variable, or constant in the expression change? Why?

Answer 1

For part A: the constant is 83.50. the variable would be c and w. and the coefficient would be 10c or 15w.

part B: so 10(4)+15(15)+83.50 -----> 10x4= 40------> 40+15(15)+83.50---->15x15=225
40+225+83.50=348.50

part C The coefficient would change because a constant is always constant, a variable is just a letter standing in for a number which would make the coefficient the one that changes for $10 to $20.
hope that help!