Answer: 5 1/4
Step-by-step explanation:
Ervin sells 13 cars per 3 months so 13/3=4.3 cars per month.
this means that
___month___ ___cars sold___
1 4.3
2 2*4.3
3 3*4.3
: :
n n*4.3
the linear function representing the cars sold per month is f(n)=4.3*n
(Practically, this means that the expected number of cars sold after n months is a whole number close to 4.3*n.)
Answer:
the slope is 4.3 (13/3)
Solve your system of equations.
2x+y=1;4x+2y=−1
Solve 2x+y=1 for y:
2x+y+−2x=1+−2x(Add -2x to both sides)
y=−2x+1
Substitute (−2x+1) for y in 4x+2y=−1:
4x+2y=−1
4x+2(−2x+1)=−1
2=−1(Simplify both sides of the equation)
2+−2=−1+−2(Add -2 to both sides)
0=−3
Answer: No solution. C)
2x^2+(6-1)x-3
2x^2+6x-x-3
2x(x+3)-1(x+3)
(2x-1)(x-1)
