Question

Please help on this question I can't seem to figure the answer out?

Answer 1

Answer:

0.5

Step-by-step explanation:

Total bags (U) = 140

The number of bags with both button and zip:

(48 + 47 + x + 22) = 140

117 + x = 140

x = 140 - 117

x = 23

Therefore, the probability that the bag has a button:

Total Number of bags with button:

(Bags with button alone + bags with both button and zip)

(47 + 23) = 70

Probability = (required outcome / Total possible outcomes)

P (bag has a button) = (number of bags with button / total number of bags)

P (bag has button) = 70/140 = 0.5

P (bag has button) = 0.5

Hope this helps, have a nice day/night! :D

Answer 2

Answer:

65 of the 140 bags have zips.

Step-by-step explanation:

You have 140 bags in total, and you want to know how many have zips. When you add the totals of all listed bags it comes out to 113 (37+38+38) however you need 140, so 140-113=27 bags that have both buttons and zips.

So you can either add up the bags with zips, or subtract the ones without from the total.

140(total) - 37(no zips) - 38(no zips) = 65(with zips)

38(with zips) + 27(with zips) = 65(with zips)