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.

did u ever get the answers? i need

area of rectangle a is 2 times that of rectangle b that means 2x+x =   36cm^2

3x = 36cm ^2

x = 36/3

x= 12cm^2

and 2x = 24cm^2

now side of square = are divided by sides = 36/4 = 6cm

that means length of rectangle a and b is 6cm too

now for rectangle a,

l*b = area

= 6*y=24

y=24/6 = 4

therefore dimensions of rectangle a are- length = 6cm, breadth = 4cm

and for rectangle b, length = 6cm and breadth = 6-4 = 2cm.

hope this .