Question

You need at least $485 to go on a trip to New York City. You already have $100 saved for the trip. You decide to save an additional $35 per week. Which inequality shows the number of weeks, w, you need to save to be able to go on the trip?

Answer 1

`485 \leqslant 100 + 35x`
x = weeks

Answer 2

Remark
The entire trip costs 485 dollars. She has a hundred, and you are looking for the number of weeks needed to save for the trip.

Step one
Set up the basic equation.
35w + 100 ≥ 485

Step two
solve
35w + 100 ≥ 485 Subtract 100 from both sides.
35W ≥ 485 - 100
35W ≥ 385 Divide by 35
W ≥ 385 / 35
W ≥ 11 weeks.

Since we don't have choices, we can't eliminate those that are wrong.

If I had to guess I would say it was something that looked like
35W + 100 ≥ 485