Mixture Problems: Solutions with Various Concentrations II - By Khan Academy
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DESCRIPTION:
The instructor in this video Sal Khan continues to discuss solving mixture problems. This problem involves percentages and how to use a table to help solve the problem. Mr. Khan uses the Paint Program (with different colors) to illustrate his points. Sal Khan is the recipient of the 2009 Microsoft Tech Award in Education. The student or educator may want to open the video to 'full screen' as the instructor is using a black background and the writing is small.
OVERVIEW:
Mixture Problems: Solutions with Various Concentrations II is a free educational video by Khan Academy.It helps students in grades 7 practice the following standards 7.EE.B.3.
This page not only allows students and teachers view Mixture Problems: Solutions with Various Concentrations II but also find engaging Sample Questions, Apps, Pins, Worksheets, Books related to the following topics.
1. 7.EE.B.3 : Solve multi-step real-life and mathematical problems posed with positive and negative rational numbers in any form (whole numbers, fractions, and decimals), using tools strategically. Apply properties of operations as strategies to calculate with numbers in any form; convert between forms as appropriate; and assess the reasonableness of answers using mental computation and estimation strategies. For example: If a woman making $25 an hour gets a 10% raise, she will make an additional 1/10 of her salary an hour, or $2.50, for a new salary of $27.50. If you want to place a towel bar 9 3/4 inches long in the center of a door that is 27 1/2 inches wide, you will need to place the bar about 9 inches from each edge; this estimate can be used as a check on the exact computation..
