Word problem
in Pre-Algebra Answers by

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
To avoid this verification in future, please log in or register.

1 Answer

If it started to snow t hours after he started then he would have travelled 70t miles. It took him a further 10.8-t hours to get home travelling at 50mph, so he would have travelled 50(10.8-t) miles.

The whole distance is 630 miles, so 70t+50(10.8-t)=630.

Expanding the brackets: 70t+540-50t=630, 20t=630-540=90, t=90/20=4.5 hours.

It started to snow 4½ hours after he started his journey home.

by Top Rated User (617k points)

Related questions

Welcome to MathHomeworkAnswers.org, where students, teachers and math enthusiasts can ask and answer any math question. Get help and answers to any math problem including algebra, trigonometry, geometry, calculus, trigonometry, fractions, solving expression, simplifying expressions and more. Get answers to math questions. Help is always 100% free!
82,287 questions
86,814 answers
1,951 comments
3,648 users