Word problem help needed

Question

Humberto has $1700 in a savings account to use for spending money during his summer trip to Mexico. He was careful and spent only $175 each week.

-Write a linear equation in slope-intercept form that describes the amount of money Humberto has remaining in his account x weeks after he began his trip

-How much money did he have left after 6 weeks?

-How many weeks did Humberto travel in Mexico if he has $125 left at the end of his trip? Use algebra to solve this and show your work.

Answer 1

y = 1700 - 175x

y = 1700 - 175(6)

125 = 1700 - 175x