let the distance travelled by the faster train be x km
let the distance traveled by the slower train be 312-x km
time for faster train = x/82 hours
time for slower train = (312-x)/74 hours
when they meet, wouldn't they have traveled for the time ??
so
x/82 = (312-x)/74
cross-multiply and solve for x
put that back into x/82
Please help me answer this!
At 1pm, two trains traveling towards each other leave from towns 312km apart. One train can travel at most 82 km/h, and the other train at most 74 km/h. What is the earliest possible time for the two trains to meet?
For this problem:
a. define variables
b. write an inequality that can be used to solve the problem
c. solve the inequality
3 answers
just re-read your post and noticed you are dealing with inequalities.
Make the appropriate changes, the math doesn't change.
Make the appropriate changes, the math doesn't change.
Reiny, do you know how unhelpful that is???????
5 answers