First is to make equations for both sides.
Let x be the number of the miles.
a be the charge of the first company
b be the charge of the second
a=$35+$0.25(x), b=$40+$0.20(x) .
then a=b
Substitute the equations
$35+$0.25(x)=$40+$0.20(x)
$0.25x - $0.20x = $40 - $35
$0.05x = $5
x= $5/$0.05 , cancel out the unit.
x= 100
To justify substitute x to both the equations a and b.
a= 35 + 0.25(x)
a= 35 + 0.25(100)
a= 35 + 25
a= $60
b= 40 + 0.20(x)
b= 40 + 0.20(100)
b= 40 + 20
b= 60
a=b
60=60.
Answer:
(15/100*percentage fee* x O*Original price* + C*car price*)
1 expression: (15/100 x O) + C
2 expression: (15/100 + C) x (O + C)
3 expression: C + (O x 15/100)
Answer:
4
Step-by-step explanation:
3(a+2) = 26-2a
3a+6=26-2a
3a+2a=26-6
5a=20
a=20/5
a=4
Answer:
C $540
Step-by-step explanation:
2700 / 10 = 270 = 10%
270 x 2 = 540 = 20%
We need to find the average of the grades.
82+96=178/2=89
So, your overall grade in the class is a 89%.
