Answer:
this isn't really an answer but use desmos graphing calculator, its an app and a website it will give you the answer.
Answer:
C. 364.4
E. 14
F. 21
G. 96°
15.17% is equal to .1517 (just move the decimal to the left twice)
Answer:
If x = 3y and 3y = x, then y = 1/3x.
Answer:
x = -5 and y = 8
Step-by-step explanation:
To solve the system by substitution, solve one equation for a variable. Then substitute the equation into the other equation.
x + 2y = 11 becomes x = 11 - 2y
Substitute x = 11 -2y into 4x + 4y = 12.
4(11-2y) + 4y = 12
44 - 8y + 4y = 12
44 - 4y = 12
32 = 4y
y = 8
Substitute again with y = 8 into the equation to find x.
x = 11 - 2(8)
x = 11 - 16
x = -5
