Bright Hub Education

Bright Hub Education

  • Teaching Tools
    • Teaching Tools
    • Classroom Management
    • Education Industry
    • Student Assessment Tools
    • Teaching Methods
  • Preschool and Early Ed
    • Preschool and Early Ed
    • Infant Development
    • Parenting Tips and Advice
    • Preschool Crafts and Activities
    • Preschool Lesson Plans and Theme
    • Preschool Teaching Strategies
    • Toddler Activities and Ideas
  • Elementary School
    • Elementary School
    • Grade School Activities
    • Lesson Plans for Pre-K and K
    • Lesson Plans: Grades 1 - 2
    • Lesson Plans: Grades 3 - 5
    • Parenting Grade Schoolers
    • Teaching Younger Students
  • Middle School
    • Middle School
    • English Lessons: Grades 6-8
    • History Lessons: Grades 6-8
    • Math Lessons: Grades 6-8
    • Parenting Preteens and Tweens
    • Science Lessons: Grades 6-8
    • Social Studies: Grades 6-8
    • Teaching Middle Schoolers
    • The Arts: Grades 6-8
  • More
    • High School(7)
    • Homework Help(20)
    • Special Ed(11)
    • More Areas(4)
More
High School (7)
Homework Help (20)
Special Ed (11)
More Areas (4)
English Lessons: Grades 9-12
High School Teaching Tips
History Lessons: Grades 9-12
Math Lessons: Grades 9-12
Parenting Teens
Science Lessons: Grades 9-12
The Arts: Grades 9-12
English Help
Geography Facts
Help with German
Help with Latin
Help with Writing
History Help
Language Learning Strategies
Learning Chinese
Learning French
Learning Italian
Learning Japanese
Learning Spanish
Literature Study Guides
Math Facts
Miscellaneous Languages
Science Homework Help
Science Projects
Social Studies Help
Study and Learning Tips
Test Preparation
Behavioral Disorders
Gifted and Exceptional St...
Hearing Impairments
IDEA, IEPs and The Law
Inclusion Strategies
Learning Disorders
Neurological Disorders
Physical Disabilities
Special Ed: Parent Perspe...
Speech Disorders
Visual Impairments
Homeschooling Advice
Summer Learning
Teaching a Second Language
Teaching ESL Learners
Homework Help
    Skip to content
    768

    How to Convert Inches per Second to Miles per Hour with Cross Multiplication

    Help with Math Homework / By Haley Drucker / Homework Help & Study Guides

    Doing the Math

    It’s not often you have to know how to convert inches per second to miles per hour. So while there is a general conversion, it’s better to know how to arrive at the answer mathematically. Let’s reason through this problem.

    Say we are given a value of 30 inches per second, and we need to convert it to miles per hour (mph). The best way to set up this kind of problem is to do some cross multiplication. So let’s write out our starting value in a fractional form: 30 inches/1 second.

    Now we need to figure out what to multiply this value by in order to arrive at mph. Remember, you can multiply your starting value by any fraction that is equal to 1. Since there are 3600 seconds in one hour (60 minutes per hour x 60 seconds per minute), we’ll multiply our starting value by 3600 seconds/1 hour. This will convert the unit of our value from seconds to hours.

    We also need to convert it to miles. There are 5,280 feet in a mile (this is a handy conversion to know) and 12 inches in a foot. 5,280 x 12 = 63,360 –and that’s how many inches there are in a mile. So we’ll also multiply our starting value by 1 mile/63360 inches, which will convert the unit of our value from inches to miles.

    Here’s how this calculation works:

    con7 Pin it! Share on Facebook
    con5 Pin it! Share on Facebook
    con3 Pin it! Share on Facebook

    Getting the Answer

    Notice that we can cross out both the “inches" and “seconds" labels, leaving our answer with the right units. Now all we have to do is perform the actual calculation. (30 x 3600) / 63360 = approximately 1.70, so our answer is 1.70 mph.

    If you plug in 1 inch per second for the first value, you’ll get a conversion factor of 1/17.6 or approximately .0568. So as a shortcut (and if you remember or memorize the conversion), you can simply multiply your inches per second value by .0568. For example, 30 inches per second x .0568 = 1.704 mph.

    Sample Problems

    Here are some sample problems to help you practice how to convert inches per second to miles per hour.

    1. While doing a physics experiment, Rob measures his cart’s speed to be 146 inches per second. What is the cart’s speed in miles per hour?

    2. Belinda, who is doing the same physics experiment, is measuring her cart’s speed in 5 second intervals. If her cart moves 830 inches in 5 seconds, what is its speed in miles per hour?

    3. The speed limit on a certain interstate is 65 miles per hour. How fast is this in inches per second? (This will require you to do the conversion backwards.)

    Post navigation

    ← Previous Post
    Next Post →
    Copyright © 2019 Bright Hub Education. All Rights Reserved.
    About | Copyright Policy | Privacy Policy | Terms of Use

    Popular Pages

    • Home

    More Info

    Recent

    • Real World Examples Help You Understand and Apply Fractions
    • Step-By-Step Guide to Long Division: Remember all the Steps
    • A Table of Contents for Tips and Help With Fractions Homework
    • Guide for Help with Addition and Subtraction for Elementary Students
    • An Elementary Math Operation Cheat Sheet With Problem Examples For Each Operation
    • How to Estimate Answers to Math Problems Quickly: The Key to Estimation

    Navigation

    • Teaching Tools
    • Preschool and Early Ed
    • Elementary School
    • Middle School
    • Top Menu

    Search

    Get in touch

    • Twitter
    • Google+
    © brighthubeducation.com. All rights reserved.
    • Privacy Policy