Solve for m
2/5 = m/70 =
show work and order of operations

m = 28

Step-by-step explanation:

70 × 2 = 5m

140 = 5m

28 = m

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.