Watch Joint Proportion from Art of Problem Solving
Spend some time pondering on "Work" word problems from Purple Math.
These are some very standard word problems you'll encounter in competition math.
Review --
dimensional change and probability links from previous weeks.
More practices on inverse and direct relation
From Regents Exam Prep
Link I
Link II
New concepts:
Height to the hypotenuse
How many ways to arrange the word "banana"? (with elements repeating)
Probability that two of the 3 friends were born on the same week day.
Question
: If you can earn 0, 1, 3, 7 or 10 points with each shot and each
person has three chances, how many scores can't be made?
Note:
Percentage
increase (don't forget to minus the original 100% or 1) is very
different from at what percent will it return to the original size or
what is the size compared to the original.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment