Fiona has to choose a bouquet for her wedding. the probability that she uses red roses is 98%, the probability that she uses orchids is 87%, and the probability that she uses gerber daisies is 94%. given the probability that she has both roses and orchids is 0.87 and the probability that she has both gerber daisies and roses is 0.97 what is the probability that her bouquet contains roses or orchids?

let soccer = x and golf = y

part a

1st equation: x + y = 125

2nd equation: x = y +45

part b

replace x in the 1st equation with the 2nd one:

y + 45 + y = 125

simplify:

2y + 45 = 125

subtract 45 from each side:

2y = 80

divide both sides by 2:

y = 80/2

y = 40

she plays golf for 40 minutes.

part c

no because she plays soccer for 45 minutes longer than golf 40 +45 =   85 minutes, not 80 minutes.

paula, cory, and krista