More Problems in Percent: Finding Percents of Unknown Numbers
This clip builds on the role of proportion in solving percent problems, but introduces complications that add steps and make it more difficult to set
Subject: percent
More Problems in Percent: Summary: More Problems in Percent
This clip summarizes the "More Problems in Percent" lesson. It reviews the importance of setting up a proportion when starting any problem about
Subject: percent
More Problems in Percent: Problem Involving Interest, A
This clip explains how to figure out the monthly interest due on a loan.
Subject: percent
More Problems in Percent: Percent and Proportion
This clip reviews the role that proportion plays in solving problems involving percent. "Once we have the proportion," the clip notes, "Â…solving (the
Subject: percent
More Problems in Percent: Percents in Steps
This clip uses a problem about a growing colony of foxes to demonstrates how an increase in the fox population over time affects the way the proportion must be set up.
Subject: percent
Solving a Complicated Mixture Problem
A complicated word problem involving percentages is broken into simpler parts and a solution found.
Subject: percent
Transcript: AMOUNT OF PURE ALCOHOL. IN OTHER WORDS, WE USED A FORMULA. PERCENT TIMES QUANTITY EQUALS PURE SUBSTANCE. WE'LL USE THE SAME FORMULA TO FIND THE AMOUNT OF
Solving a Mixture Problem Using One Variable
A word problem involving mixing a solution that needs to be 25 percent chlorine is analyzed, the unknown identified, and a one-variable equation
Subject: percent
Transcript: LIQUID AND THE STRONG LIQUID. TO FIND THE NUMBER OF GALLONS OF CHLORINE IN EACH LIQUID, WE'LL MULTIPLY THE PERCENT BY THE TOTAL NUMBER OF GALLONS IN EACH
Solving a Mixture Problem Using Two Variables
A word problem involving mixing a solution that needs to be 25 percent chlorine is analyzed, the unknown identified, and a two-variable system of
Subject: percent
Transcript: CLEANER. WE'LL MULTIPLY THE PERCENT BY THE UNKNOWNS. IF WE SOLVE THE PROBLEM WITH TWO VARIABLES, WE CAN LET X STAND FOR THE NUMBER OF GALLONS OF THE 5
The Meaning of Percentage: Percentage Provides An Easy Way to Compare Fractions
This clip explains that using percent to express values provides an easy means by which to compare fractions. The clip notes that, since there's a
Subject: percent
The Meaning of Percentage: Decimals, Percents and Fractions
This clip explains that decimals can be changed to percents by moving the decimal point all the way to the far right and adding the percent sign
Subject: percent