So I know how to do these types of problems but I have a hard time figuring out how to write the equation. Mrs. Sue, if you could help I would greatly appreciate it. I really just need to know what the way to write the equation is for word problems. Thank you!

Question

Suppose you are driving to visit a friend in another state. You are driving at an average rate of 50 miles per hour. You must drive a total of 345 miles. If you have already driven 145 miles, how many hours will it take you to reach your destination?

A. 5 hours
B. 3 hours
C. 4 hours
D. 6 hours

Again I don't need help solving it, I just need a general idea of how to make word problems like this into equations. Thank you!

Answer 1

time = (345-145)/50 = 200/50 = 4 hrs

Answer 2

This does not help me. You are not answering my question. I need to know a general way to write equations from word problems, not solve them. I can solve this, but first I need to know a way to write the problem. This doesn't help me. Please re-read or read my actual question, not just the problem, thank you.

Answer 3

(345 - 145) / 50 = h

Answer 4

@danceroftheages did you read the question that you posted?

Answer 5

I have the same question with these two problems as well:

1. Jesse played two days of golf. On the second day, he got a score of 6 below par, or −6. His total score for the two days was 0 above par, or 0. Define a variable. Then write and solve an equation to find the score Jesse got on the first day. Show your work.

2. Your local gas stations are having a price war. During the past 7 days, they have lowered the price of regular gas by $.02 each day. Define a variable. Then write and solve an equation to find the total change in gas price. Show your work.

Answer 6

1. n + (-6) = 0
n = the first day's score
n + (-6) = 0
Add 6 to both sides.
n = 6

2. t = daily change * number of days
t = 7 * 0.02
t = $0.14