Think of how arithmetic sequences act. They start at a given number, and then they march up or down by the same distance each time. For example:
3, 7, 11, 15, 19, ...
this one marches up by 4 each time.
If this is plotted on a graph, the first point is (1,3), then (2,7), then (3,11), then (4,15) and so on. You'll notice that the slope is the same between all the points. In other words, you get a straight line! This is true for any arithmetic sequence.
We know that
scale factor=2.5
volume larger warehouse=scale factor³*volume smaller warehouse
volume larger warehouse=2.5³*volume smaller warehouse
volume larger warehouse=[15.625]*volume smaller warehouse
that means
the volume of the larger warehouse is 15.625 times the volume smaller warehouse
the energy and cost is proportional to the volume
so
the new cost is 15.625*$125-----> $1953.12------> $1953
the answer is
$1953
I don’t know how to do this sorry
<span>2x-4y=32
2x-8y=48
--------------subtract
4y = - 16
y = -4
</span>2x-4y=32
2x- 4(-4)=32
2x + 16 = 32
2x = 16
x = 8
answer
(8, -4)
