a rap about setting up proportions and isolating variable

1. What’s Going On With the Y?

2. Part equals % times the whole 20 = 20% x 100 = 20 x 100 Do your hw every night 100 And you’ll be in control 3x 2x The part’s the numerator The whole’s the denominator Part Numerator Whole Denominator 1x

3. Part equals % times the whole Decimal to percenT - go 2 places to the righT 20 = 20% Percent to decimaL – go 2 places to the Left 20% = 20 Part equals % times the whole . . 2x 2x 1x

4. The denominator x the whole number + the numerator is improper What’s going on with the y - do the opposite to both sides Down the middle put the wall, then treat both sides equal What’s added, you subtract What’s multiplied, you divide If a fraction, go inverse And you will not be denied 7 + y = 10 -7 -7 y = 3 check 7 + 3 = 10 Part equals % times the whole 7y = 77 /7 /7 y = 11 check 7 x 11 = 77 1/2y = 6 (2/1) 1/2y = 6 (2/1) y = 12 check 1/2 (12) = 6 3 1 2 = 2 2 X 3 + 1 7 = 2 =