The inverse operation is a cubed root. It is a square root symbol with a small 3 to the left of the radical. The cubed root of x is a number, when cubed, gives x. For example, .
You round it up to 9.8 because the hundredth place is above 5.
The 7 is the tens place, 6 is the hundredth, and 5 is thousandth.
B. 12.6
C. 14.0
D. 18.0
E. 21.0
Answer: The correct option is (B) 12.6.
Step-by-step explanation: Given that an industrial cleaner is manufactured using only the 3 secret ingredients A, B, and C, which are mixed in the ratio of 2 : 3 : 5 respectively, by weight.
We are to find the number of pounds of the secret ingredient B that are in a 42-pound bucket of this cleaner.
Let the quantities of the ingredients A, B and C in the cleaner be 2x, 3x and 5x respectively.
Then, according to the given information, we have
Therefore, the quantity of the ingredient B is given by
Thus, option (B) is CORRECT.