Hi. When water seeps into the cracks in rocks it expands as it freezes. Once it thaws, it seeps yet again into additional cracks in the rock. Over time, this causes large chunks of the rock to loosen and subsequently fall off.
Hope this helps.
Take care,
Diana
2.60 x 12 3/4
2.60 x 12.75 (convert to decimal)
= $33.15, which is not listed.
We could draw a table to help us to answer this question.
Took medication Didn't take medication Total
No cough 17 28 45
Cough 13 42 55
Total 30 70 100
The question states "given that they reported no cough", which is basically asking how many people OUT OF those who reported no cough took the medication.
So using the table, the number of people who took the medication and reported no cough is 17. The TOTAL number of people who reported no cough is 45. 17/45 = 37.777 = 38%
4 and 15. You can guess and check or use algebra.
Answer:
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