How do i figure out 2/3(5*4)/3+6/7=

work out the product in the parenthesis firat:-

2/3(5*4)/ 3 + 6/7

= 2/3(20) / 3 + 6/7

= 40/3 / 3 + 6/7

= 40/9 + 6/7

= 334/63

First start off by: multiplying 5 * 4 = 20

Second do: 2/3 times 20 that equals 40/1 or 40 (2 times 20 / 3 times 1 = 40/1)

Third try: Dividing 40/3 (3 = 40/3 times 1/3 equals 40 times 1 / 3 times) this equals 40/9

Fourth and the Final step: Add 40/9 plus 6/7 (40 · 7

9 times 7 plus 6 times 9 / 7 times 9 = 280 /63 + 54 /63 = 280 + 54 /63 = 334 /63

The correct answer is 334/63

amount of oatypop that contains the prize = 40%

amount   of oatypop which doesn't contain the prize = (100-40)=60%

probability that hannah will win a prize

    = s +f s +f f s+ff   f s+ff f f s+ infinity.where f= failure,s= success

=   or 60%

probability that hannah only has to buy 3 or less boxes before getting a prize= (s) and ( f s) and (ff s) and (f f f s)

        = = 87.04 %  

step-by-step explanation: