Which proportion could be used to express 18/20 as a percent

so 20*5=100 and a percent is out of 100

so we just multiply 18*5 which equals

90 so 18/20=90%

we could also figure this out because if we simplify we get

9/10 which is also 90%

Hope This Helps!!!

d (5 x (-20)) * (100 x (0.7))

step-by-step explanation:

5÷1/100 * -.7 *-20

copy dot flip

5*100 * -.7 *-20

rearrange

5*-20   * 100 *-.7

-100   *-70

7000

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0