Answer:
y=7x-3
Step-by-step explanation:
y=mx+b
m is the slope, so replace m with 7
b is the t-intercept so replace b with the -3.
Answer:
(- 6, 14 )
Step-by-step explanation:
Given the 2 equations
x + y = 8 → (1)
2x + y = 2 → (2)
Multiplying (1) by - 1 and adding to (2) will eliminate the y- term
- x - y = - 8 → (3)
Add (2) and (3) term by term to eliminate y, that is
x = - 6
Substitute x = - 6 into either of the 2 equations and evaluate for y
Substituting into (1)
- 6 + y = 8 ( add 6 to both sides )
y = 14
solution is (- 6, 14 )
Answer:
Given the system of equations:
.....[1]
.....[2]
We can write equation [1] as;
2(y-x) = 12
Divide both sides by 2 we get;
or
y = x+6 ....[3]
Substitute equation [3] in [2] we get;
Subtract 36 from both sides we have;
Combine like terms;
or
By zero product property:
x =0 and x+6 = 0
or
x = 0 and x = -6
now, substitute the given values of x in [3] we have;
for x = 0
y = 0+6 = 6
for x = -6
y = -6 + 6 = 0
Therefore, the solution for the given system of equation is, either (0, 6) or (-6, 0)
21 hundred million,64 thousand, and 50
Answer:
55 + .45m
Step-by-step explanation:
The total cost of renting the car is the fixed cost plus the cost per mile
55 + .45m where m is the number of miles
