in a group of 140, 92 watch tennis 81 play a sport and 40 do neither find the probability that an adult chosen at random from those who watch tennis does not play sport if correct free brainy and follow or sub on any platform

19

Step-by-step explanation:

140 in group - 81 that play a sport = 59 left.

Out of 59 left- 40 who dont play a sport at all = 19 left

19 of the 92 who watch tennis dont play a/the sport.

30 units^2

step-by-step explanation:

area is l × w

the length is 3

and the width is 10

3 × 10= 30 units squared

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18