Eight white balls and twenty black balls are in a bag. What is the probability of drawing a black ball in one draw?
1 answer:
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To find the difference of given expression:
First step is to subtract the whole number5 and 3.
So, 5 - 3 = 2.
Now we can find the difference of fractions.
To subtract the fractions , we need to find the common denominator.
Common denominator of 3 and 5 is 15.
So, we need to make both the denominator equal to 15.
Similarly,
Therefore,
=
=
So, the difference of given expression is .
So, the correct choice is C.
Answer:
Step-by-step explanation:
Given : The amount of icing used for every of a cake =
To find the unit rate in ounces of icing per cake, we need to divide by
, we get
The unit rate in ounces of icing per cake =
Hence, the unit rate in ounces of icing per cake =