math
posted by sarah .
if a number x is 10%of y and z,and z is 3 times of y.What % is x of y alone? 1)3.3% 2)2.5% 3)5% 4)4%
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1. a standard number cube is rolled 180 times. Predict how many times a 3 or 5 will be the result. 31 times 60 times*** 57 times 30 times 2. A number cube is rolled 360 times, and the results are recorded as follows: 61 ones, 26 twos, …