We need to subtract 1050 from 1280, which is 230, now we need to find what percentage 230 is of 1280, so that is 17.97%, so the percentage of decrease I think is 17.97%. Please give 5 stars if right :)
X=-29/3 Original equation:<span>−4−2</span>=<span>2v−2+v+100/4 </span>
Simplify and combine like terms:<span><span><span>−4</span>+</span>−2</span>=<span><span><span><span><span>2v</span>+</span>−2</span>+v</span>+25</span><span><span>(<span><span>−4</span>+<span>−2</span></span>)</span>=<span><span>(<span><span>2v</span>+v</span>)</span>+<span>(<span><span>−2</span>+25</span>)
</span></span></span><span>−6</span>=<span><span>3v</span>+23</span><span><span>−6</span>=<span><span>3v</span>+<span>23
Flip Equation: </span></span></span><span><span>3v</span>+23</span>=<span>−<span>6
</span></span>Subtract 23 from each side:<span><span><span>3v</span>+23</span>−23</span>=<span><span>−6</span>−23</span>
<span><span>3v</span>=<span>−<span>29
</span></span></span>Divide each side by 3:<span><span><span>3v/</span>3</span>=<span><span>−29/</span>3</span></span><span>v=<span><span>−29/</span><span>3</span></span></span>
Answer:
2
Step-by-step explanation:
Answer:
n=9
Step-by-step explanation:
Q1=n+1/4
=9+1/4
=10/4
=2.5
Step-by-step explanation:
tn=n(n+1)(2n+1)
t23=23(23+1)(2*23+1)
t23=36754