Answer:
y = 1/2 x -14.5
Step-by-step explanation:
2x-4y=58
solve for y
subtract 2x from each side
2x-2x-4y = -2x+58
-4y = -2x+58
divide by -4 on both sides
-4y/-4 = -2x/-4 +58/-4
y = 1/2 x -14.5
15/8 = 75/40
2/5 = 16/40
7/8 = 35/40
75/40 + 16/40 - 35/40=
40/40 + 16/40 = 56/40
your answer is 1 16/40
simplest form: 1 2/5
hope this helps
we know that
The sum of the internal angles in the triangle must be
degrees
see the attached figure with letters to better understand the problem
Step 
<u>Find the measure of the angle x</u>
In the triangle ABC

solve for x



therefore
<u>the answer Part a) is</u>
the measure of angle x is 
Step 
<u>Find the measure of the angle z</u>
we know that
--------> by supplementary angles
substitute the value of x



therefore
<u>the answer Part b) is</u>
the measure of angle z is 
Step 
<u>Find the measure of the angle y</u>
In the triangle ACD

solve for y




therefore
<u>the answer Part c) is</u>
the measure of angle y is 
Answer:yes
Step-by-step explanation: it just is