Let the extra matches they need to play be x, then:-
total they will win = 3 + 2/3 x
so
3 + 2/3 x = 3/5(x + 10)
3 + 2/3 x = 3/5 x + 6
1/15 x = 3
x = 3*15 = 45
Answer they need to play 45 more matches.
The text tells us 215 is 86% of the questions
We are looking for 100% of the questions
We get that number by:
Multiplying 100 and 215 and dividing it by 86

And that equals 250
When you foil it out you should get: 2x^5-2x^3-12x. When you factor it out completely you get: 2x(x^2-3)(x^2+2)
Answer:
64$
Step-by-step explanation:
well it is doubling every time. so 64$