Which value of x satisfies the equation 7/3 (x + 9/28) = 20?

x=8.25

Step-by-step explanation:

Divide both sides by 7/3

(x+9/28) = 8.57

Subtract 9/28 on both sides

x = 8.25

step-by-step explanation:

in counting the number of heads in 4 coin flips, the probability that we get exactly one head is the probability that we get anyone of the following 4 outcomes: httt, thtt, ttht, or ttth. each has probability 1/16, so the probability to get exactly one head in 4 flips is 1/16 + 1/16 + 1/16 + 1/16 = 4/16 = 1/4.