Only one because there is one variable and the combined coefficients of x are non-zero.
(0.75(x+40)=0.70(x+20), 0.05x=14-30=-16, x=-320)
Answer:
AA
Step-by-step explanation:
Answer:
(7/15,−13/5)
Equation Form:
x=7/15,y=−13/5
Step-by-step explanation:
Solve for the first variable in one of the equations, then substitute the result into the other equation.
Answer:
236 inches^3
Step-by-step explanation:
V=πr^2 h/3
pi5^2*3
25*pi3
75pi
=235.62
