Answer:
Step-by-step explanation:
5p is the original price
Then 2p is the new price
5p-2p=3p
Answer:
The measure of arc DC is 
Step-by-step explanation:
we know that
The measure of the inner angle is the semi-sum of the arcs comprising it and its opposite.
![m\angle ATB=\frac{1}{2}[arc\ AB+arc\ DC]](https://tex.z-dn.net/?f=m%5Cangle%20ATB%3D%5Cfrac%7B1%7D%7B2%7D%5Barc%5C%20AB%2Barc%5C%20DC%5D)
substitute the given values
![63\°=\frac{1}{2}[115\°+arc\ DC]](https://tex.z-dn.net/?f=63%5C%C2%B0%3D%5Cfrac%7B1%7D%7B2%7D%5B115%5C%C2%B0%2Barc%5C%20DC%5D)
![126\°=[115\°+arc\ DC]](https://tex.z-dn.net/?f=126%5C%C2%B0%3D%5B115%5C%C2%B0%2Barc%5C%20DC%5D)

We have:
in hungarian:
h = 150 words / min
in polish:
190 words / min
Let:
x: number of words in Hungarian.
y: number of words in Polish.
We have the following system of equations:
(1/150) * (x) + (1/190) * (y) = 5 y = x + 270
The solution is:
x = 300 words
y = 570 words
Therefore the time speaking in each language is:
in hungarian:
(1/150) * (300) = 2 min
in polish:
(1/190) * (570) = 3 min
Answer: in hungarian: 2 min in polish: 3 min