Since both are equivalent to f(x), 4x-7 must equal 8
4x-7=8
Add 7 to both sides
4x= 15
Divide both sides by 4
x=15/4
Final answer: x=15/4
9514 1404 393
Answer:
(x, y) = (19, 20)
Step-by-step explanation:
The coefficients of y are opposites, so we can add the two equations to eliminate y.
(-3x +8y) +(-5x -8y) = (103) +(-255)
-8x = -152
x = 19 . . . . . . . divide by -8
Substituting into the first equation, we have ...
-3(19) +8y = 103
8y = 160
y = 20
The solution is (x, y) = (19, 20).
Answer:
La función es: f(x) = 20+0.5x
Step-by-step explanation:
La función que representa la condición sería:
f(x) = 20+0.5x
Donde:
- 20 € es el costo por día
- x es la cantidad de kilómetros
- f(x) cobro por dia en función de los kilómetros
Espero te haya servido!
Each runners time would be an average of 18.1
72.4/4=18.1
600+80+5+.90+.09 is the answer