tainniyarowe
28.07.2021 •
Mathematics
13. 30 of the 100 iPads in an inventory are known to be cracked. What is the probability you randomly select one that is not cracked?
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Ответ:
7/10 or 0.7
Step-by-step explanation:
a probability is always the ratio of possible cases over all cases.
"all cases" here is 100.
possible cases are all iPads not cracked in the inventory = 70 (because 30 are cracked, that leaves 100-30=70 not cracked).
so, the probability to select a non-cracked unit is
70/100 or simplified 7/10 (or 0.7)
Ответ:
question 1 is angle addition postulate
Question 2 is 2x=56
Step-by-step explanation: