4y-17=43
move -17 to the other side
sign changes from -17 to +17
4y-17+17=43+17
4y=43+17
4y=60
divide both sides by 4 to get y by itself
4y/4=60/4
answer:
y=15
This is a 30, 60, 90 triangle. One angle measures 30° and the other measures 90°. The other has to be 60° because all triangles are 180°. These triangles have special rules:
Say the side opposite 30° (in this case, y) is equal to 1
The side opposite the 60° (in this case, x) is equal to √3
The side opposite 90° is 2.
If 16√3 is opposite 90°, then opposite 30° would be half of that. Therefore, y = 8√3.
Now we need to multiply y by √3 to get x, because the side opposite 60° is always that of 30° multiplied by √3.
8√3 * √3 = 24 as the √3s cancel and become 3. So 8 multiplied by 3 makes 24.
Therefore, x = 24.
What you would do is 1/4+1/4=1/2. Then since we know Brookfield to Oakdale is 2/3, do 2/3-1/2. To do this we find common denominators, then do 4/6-3/6 to is get an answer of 1/6 mile. Tell me if this is correct.
