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Ok so reading it carefully, `rectangular room is three times as long as it is wide` that means length = 3 width, right?
\[l = 3w\]
So our perimeter is \[w+3w+w+3w = 48\] would you agree, as the perimeter means the total distance of a 2d shape (add all the dimensions on a 2d shape)|dw:1434596025323:dw|
Now we can solve for the width, can you do that?
What do you get when you add up w+3w+w+3w?
\[w+3w+w+3w \implies 8w\] right?
So we have \[8w = 48\] solve for w now.
ahhh i saw my mistake, w=6
Yes :) and now lets check if this is right.
So if we have w = 6, that means length is 18 right because length = 3 * 6 = 18 and if we add it up \[6+3(6)+6+3(6) = 48 \implies 48 = 48 ~~~ \checkmark \]
can you help me with one more?
Well to find the slope first you want to put it in y = mx+b form (equation of a line) and your m here is the slope.
So can you please solve for y?
What happened to your 5x?
What will the slope be in \[y = 5/6 x + 19/6\]
ok give me a sec
Np just compare it with the equation of line I gave above :)
ok im lost
Well solving for y we get |dw:1434597701922:dw|
ok slope is 5/6 and 19/6 y intercept
Yes :), and np