3x=4y
x+y=21
x = 21-y
3(21-y)=4y
63-3y=4y
63=7y
y=9
x+y=21
x+9=21
x=12
answer is (12, 9)
Answer:
your finding the absolute value, I I this means absolute value which means if its negative it automatically is its own number you get rid of the negative sign if it's positive just keep it because it's already in it's normal number.
For example: I -4 I = 4
For example: I -5 I = 5
For example: I 3/4 I = 3/4
For example: I 3 I = 3
For example: I 4 I = 4
25% for 90deg
15% for 54deg
10% for 36deg
All I did was put the degree number over 360 and moved the decimal place to the right twice :)
It depends on which triangles you put together, if they are equilateral triangles, then its a diamond, if they are rectangle (right) triangles, then its a rectangle, if they are isosceles triangles, then its a really sharp diamond, and if they are scalene triangles, then the shape is like a common kite.
