to solve this system I first multiplied the second equation by 2 to make the x coefficient equal. then I subtracted equation two from equation one. this eleminated the x. solving for y gave me y=0. then I put 0 back in the original equation and that gave me x=-4.
Answer:
<u><em>a=-10</em></u>
Step-by-step explanation:
1+a/5=-1
subtract 1 from both sides
a/5=-2
multiply both sides by 5 to get rid of the denominator
-2x5=<u><em>-10</em></u>
To find this answer, take both sides of the equality and square them:
(√ײ)=9²
This gives you:
×=81
5.5% of 2800 =
0.055 * 2800 = 154 <==
I found two using a little C# program:
9,10,11,12,13,14,15,16
and
18,19,20,21,22
(if you're interested in the program drop me a msg)
