Answer :
Answer:
Hazel have 200 baseball cards in her collection.
Step-by-step explanation:
Let the number of card Hazel's have be x.
Given:
Hazel brother have = 80 cards
Also Given:
The number of cards in 4/5 of Hazel's baseball card collection is equal to twice the number in her brother's collection.
It means that 4/5 times of hazel card is equal to 2 multiplied with the number of cards hazel brother have.
Framing in equation form we get;
[tex]\frac{4}{5}\times x = 2\times 80\\\\4 \times x = 2 \times 80 \times 5\\\\x=\frac{2\times 80 \times 5}{4} =200[/tex]
Hence Hazel have 200 baseball cards in her collection.