Question

PLEASE HELP ASAP MATH QUESTION EASY!!!!

Jacob and Kerrie are trying to figure out how long they can live off their $84,670 savings if they spend $370 each month. They have each created an equation.

Jacob's Equation Kerrie's Equation
y = 84,670 + (370x) y = 84,670 – (370x)


Which person has the correct equation to model this linear relationship? (4 points)



a) Kerrie's equation is incorrect, because their spending will increase the amount of their savings.
b) Kerrie's equation is correct, because their spending will be multiplied by the number of months and then subtracted from their savings.
c) Jacob's equation is correct, because their spending will be multiplied by the number of months and then subtracted from their savings.
d) Jacob's equation is incorrect, because their spending should be a fixed amount and should not be multiplied.

Answer 1

Answer: B) Kerrie's equation is correct, because their spending will be multiplied by the number of months and then subtracted from their savings.

$370 dollars is used every month, and that amount of money is subtracted from the savings ($84,670). The number of months is the only variable, so that variable would have to be multiplied by the spending amount to find the total amount of money spent over a certain period of time. That amount can then be subtracted from the savings to find the amount of money left over.