ok so the easy way is this
Marc says he will have 20 if he doubles his cards.
if u divide 20 by 2 = 10
but His friend gave him 3 cards before.which means that
10-3 = 7
He started with 7 cards
I answered b and c.
The hypotenuse is 13. Becuase you have to follow the equation a^2+b^2=c^2.
Answer:
Step-by-step explanation:
x/5=5/2
x=25/2
x=12.5
2/5=24/60 because you have to make the denominators the same in order to do the problem. Which means...
5/12=25/60
Afterwards just add them together. 24/60 + 25/60 which equals 49/60. You can't simplify so the answer is 49/60 students.
This is karma for doing this to some one else :)
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