Triangles IJK and LMN are similar. Then, the proportion between their similar sides must be equal. That is:
IJ/ML = JK/MN = IK/LN
where:
IJ = x
JK = 54
IK = y
MN = 42
ML = 28
NL = 35
In order to find the value of y, you consider the equation JK/MN = IK/LN, and solve for y, just as follow
JK/MN = IK/LN replace by the values
54/42 = y/35 multiply both sides by 35
(54/42)(35) = y
45 = y
Hence, y = 45
77+78+79+80=314 Is Your Answer
Answer:

Step-by-step explanation:
Remember that slope, or in this case pitch, is equal to rise divided by run. In other words:

where m is the slope.
From looking at the image, we can see that the rise 21 feet and the run is 24 feet. By plugging this information into the equation, we get:

So the slope, or pitch, of the roof id 7/8.
I hope you find my answer and explanation to be helpful. Happy studying.
The cheap answer is, well, all we do is, grab the denominator of one and multiply the other by it, top and bottom, and grab the denominator of the other, and multiply the first one by that one too, that way, both will have the same denominator, and then you can simply check the numerator to see who's larger, let's do so.

surely you can tell.