(238+2x)/5≥80
238+2x≥80*5
238+2x≥400
2x≥400-238
2x≥162
x≥162/2
x≥81
Answer: x≥81
Multiply the recommended dosage, 7500 units, by the conversion factor
10000 units/ml:
7500 units 1 ml
-------------- * ----------------- = 0.75 ml (answer)
1 10000 units
The event "not rolling 1, 3, 4, or 5" is the same event as "rolling 2 or 6".
Since the possible outcomes of a number cube have the same probability, the probability of rolling 2 or 6 is given by
You can multiply the numerator and denominator to any number but they must be the same number to result to an equivalent expression to 7/8:)