Answer:
49 percent
Step-by-step explanation:
So convert the fraction into a percentage
245/500= 49%
For this you need to use the reverse cosine function
Cos^-1 (.25)
75.6
Answer:
30
x
^2
y
^2
Step-by-step explanation:
Answer:
15 grams .
Step-by-step explanation:
We need to multiply the percentage as a decimal (0.30) with the amount of chocolate (50 g):
0.30*50 = 15 g
There are 15 grams of cocoa in the chocolate bar.