Answer:
6. B) 0.23
7. B) 14
Explanation:
6. To solve, change the fractions into decimals. To do so, try to get them to = 100, and then move the decimal point to the left two place values:
1/5 = 20/100 = 0.20
1/4 = 25/100 = 0.25
You are trying to find a decimal point that is in between these two decimals. In this case, your answers can be the following:
0.21, 0.22, 0.23, 0.24
B) 0.23 is your answer.
7. To solve, combine the ones that have already chosen, and subtract from the total. Find common denominators:
(1/3) + (1/5) = (5/15) + (3/15) = 8/15 x (2/2) = 16/30
16 of the students chose either station K or L.
There are 30 students in all. Subtract 16 from 30:
30 - 16 = 14
14 students chose station M
B) 14 is your answer.
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