1.45 meters is your answer
Hello there.
<span>Solve 4x − 2(x + 1) = 3x + 10.
</span>
<span><span><span>4x</span>−<span>2<span>(<span>x+1</span>)</span></span></span>=<span><span>3x</span>+10</span></span>
<span><span><span>4x</span>−<span>2<span>(<span>x+1</span>)</span></span></span>=<span><span>3x</span>+10</span></span>
<span><span><span>2x</span>−2</span>=<span><span>3x</span>+10</span></span>
<span><span><span><span>2x</span>−2</span>−<span>3x</span></span>=<span><span><span>3x</span>+10</span>−<span>3x</span></span></span><span><span><span>−x</span>−2</span>=10</span>
<span><span><span><span>−x</span>−2</span>+2</span>=<span>10+2</span></span><span><span>−x</span>=12</span>
<span><span><span>−x</span><span>−1</span></span>=<span>12<span>−1</span></span></span><span>x=<span>−12</span></span>
Answer: -12
so for A it is 16 times as large because the area is 3*3 which is 9 but since it is a triangle the area is halved and is 4.5 and divide 72 by 4.5 which gives us 16
then for b I believe that the scale factor is 4
and for C it is asking for the bottom side of the scaled copy not of triangle A and 4*3=12 so the bottom is 12
ok now its complete =)
The next step is to ADD 10x to both sides!
I think it is going to be 3.55 for each notebook and 1.9 for each pen