Posted by **anonymous** on Sunday, October 28, 2007 at 10:24am.

At 3PM, two ships started sailing toward each other from ports which were 265 miles apart at average rates of 18 and 23 miles per hour. At what time were the ships still 60 miles apart?

Let t=time=5 hours

Let 18t= first ship=90

Let 23t= second ship=115

18t+23t+60=265

41t+60=265

41t=205

t=5

Answer= 5+3= 8:00PM

Is this all correct? My main problem is with the Let statements. Are there only those three? Are they right? How do I label 90 and 115? (90 what, 115 what?)

Thanks Very much in advance for any help.

- Algebra -
**tchrwill**, Sunday, October 28, 2007 at 2:41pm
Subjects

Art

Business

Computers

English

Foreign Languages

Health

Home Economics

Mathematics

Music

Physical Education

Science

Social Studies

Features

Contribute

Download

Experts

Forum

Job Openings

Homework Tips

Libraries.Jiskha

Link to Us

Reference

School Supplies

Search

At 3PM, two ships started sailing toward each other from ports which were 265 miles apart at average rates of 18 and 23 miles per hour. At what time were the ships still 60 miles apart?

Let t=time=5 hours

Let 18t= first ship=90

Let 23t= second ship=115

18t+23t+60=265

41t+60=265

41t=205

t=5

Answer= 5+3= 8:00PM

Is this all correct? My main problem is with the Let statements. Are there only those three? Are they right? How do I label 90 and 115? (90 what, 115 what?)

Thanks Very much in advance for any help.

8 PM it is.

Alternatively, the two ships are closing the gap between one another at the rate of 23 + 18 = 41mph.

How long does it take for the two ships to be 60 miles apart?

t = (265 - 60)/41 = 5 hours.

## Answer this Question

## Related Questions

- algebra - At 3PM, two ships started sailing toward each other from ports which ...
- math - At 5 p.m two ships started sailing toward each other from ports which ...
- geometry - Two ships leave a harbor at the same time, traveling on courses that ...
- 10th grade - Two ships leave a harbor at the same time, traveling on courses ...
- Calculus - At noon, ship A is 50 nautical miles due west of ship B. Ship A is ...
- Math - t noon, ship A is 30 nautical miles due west of ship B. Ship A is sailing...
- Maths- calculus - Two ships leave different ports A and B 100 miles apart at ...
- Calculus - One ship is 20 miles due North of another ship, and is sailing South ...
- Math - 6. Columbus' ships covered approximately 144 miles a day. How many miles ...
- Math - 6. Columbus' ships covered approximately 144 miles a day. How many miles ...