Simona's music book includes 50 piano tunes, of which 7 are by bach, and 18 are by mozart. if simona chooses a tune at random, what is the probability that it is either by bach or by mozart? a) 0.22 b) 0.36 c) 0.50 d) 0.64

Option c. 0.50

Step-by-step explanation:

Simona's music book includes piano tunes = 50

by Bach = 7

by Mozart = 18

Total  =  7 + 18 = 25

Probability of choosing a tune that it is either by Bach or by Mozart is

= =

= 0.50

The probability that it is either by Bach or by Mozart is 0.50.

Option c.

i think 1: 2

step-by-step explanation:

complete the steps to find the area of the trapezoid.

area of rectangle = 256   square units

area of triangle 1 = 24  square units

area of triangle 2 = 16  square units

area of triangle 3 =   96 square units

area of trapezoid = 120  square units

step-by-step explanation: