0.3, 30% is the correct answer
42 * 0.18 = $7.56
She gave the barbar $7.56 in tip
Color in the model for each fruit. The number of squares colored is the percentage. If you put the number of squares colored over 100, you have the fraction. Then put the decimal point in front of the number.
Examples-
28 acres of apples-
28%
28/100 (This can be simplified)
0.28
5 acres of peaches
5%
5/100 (This can be simplified)
.05
Set it up as a direct variation equation y/x=k where k is the constant of variation. We have values for y and x and have to find k. 18/5=k, so k=3.6. Now plug in the other given y value and use that k value to find x: y/11=3.6 or
y/11=18/5, whichever your book or teacher prefers.
You should come out with 72/5, 14.4 or 14 2/5