A bag contains 5 red marbles and 10 blue marbles. If Jen selects a marble from the bag without looking, what is the probability that she will not pull out a red marble.

2/3 = 66.7% chance

Step-by-step explanation:

5 red marbles + 10 blue = 15 total marbles

Probability of not red = probability of blue = 10/15 = 2/3 chance

1/2*qr*rs

step-by-step explanation:

26 is 33.33% of 78

step-by-step explanation:

26 is what percent of 78?

26 is p% of 78

equation: y = p% * x

solving our equation for p

p% = y/x

p% = 26/78

p = 0.3333

convert decimal to percent:

p% = 0.3333 * 100 = 33.33%