A1_Single-Variable Expressions, Equations and Inequalities_UA-1.docx

A1_Single-Variable Expressions, Equations and Inequalities_UA-1.docx

This preview shows page 1 - 2 out of 4 pages.

Unit Activity Unit: Single-Variable Expressions, Equations and Inequalities This activity will help you meet these educational goals: Mathematical Practices— You will make sense of problems and solve them, use mathematics to model real-world situations, and use appropriate tools strategically. Introduction Have you ever made a mistake when trying to solve a math problem? It can be pretty easy to do, and often will result in losing points on an exam. In the real world, such mistakes can have more serious effects: Miscalculating how much gas you have left in your car will leave you stranded. Miscalculating how much money you have left in your bank account might cost you an overdraft fee. Even more serious, miscalculations have resulted in serious accidents happening many times. Once, as a result of not using the correct units, a satellite sent to Mars burned up in the atmosphere, wasting over $300 million dollars. Fortunately, there are steps you can take to help avoid making errors along the way. One of these strategies is manipulating formulas so they are solving for the variable you want before you substitute values for the variables in the formula. This technique is especially useful when working with large, unwieldy numbers. __________________________________________________________________________ Directions and Analysis Task 1: A Journey to Earth Every moment of every day, light pours out from the Sun at the center of our solar system and travels to Earth. It does not arrive at Earth instantaneously though; it takes time to get here. Your task is to figure out how long it takes for light to travel from the Sun to Earth.
Image of page 1

Subscribe to view the full document.

Image of page 2
  • Fall '15
  • baker
  • Payday loan, serious effects

{[ snackBarMessage ]}

Get FREE access by uploading your study materials

Upload your study materials now and get free access to over 25 million documents.

Upload now for FREE access Or pay now for instant access
Christopher Reinemann
"Before using Course Hero my grade was at 78%. By the end of the semester my grade was at 90%. I could not have done it without all the class material I found."
— Christopher R., University of Rhode Island '15, Course Hero Intern

Ask a question for free

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern