Last year golden state warriors won 80% of the first 15 matches. then they won the rest of the three matches. what percent of all matches did they win?

they won 85.7%

let me know if you need any more help with this question :)

They won 14.40% of all their matches.

Explanation: First, you need to do 15+3 which equals 18. This is the total matches they played. Then, you need to turn 80% into a decimal which then becomes 0.80. Last, you do 0.80 times 18 which gives you 14.4. So, that is the percent of matches they won.

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1  

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb