Answer:
The amount of the fee for the truck is $20 and cost per mile is $1.3.
Step-by-step explanation:
If they pay a fee x dollars for the truck and y dollars per mile they drive.
Carrie drives 150 miles and pays $215.
Her fee= $x for the truck + 150 X y =215
x+150y=215...(I)
Similarly, Dave drives 120 miles and pays $176
His fee =$x for the truck + 120 X y = 176
x+120y=176....(ii)
To determine the values of x and y, we solve Equations I and II simultaneously.
x+150y=215...(I)
x+120y=176....(ii)
Using elimination method (Subtracting equation II from I)
30y=39
y=1.3
Substitute y=1.3 into (I) to get x.
x+150y=215...(I)
x+(150X1.3)=215
x+195=215
x=215-195=20
Since x=20, y=1.3, The amount of the fee for the truck is $20 and cost per mile is $1.3.
The domain is all real numbers.
Hope this helps.
One decimeter is one tenth, or 0.1, of a meter. So multiply 50 meters by 0.1 (one decimeter). The answer is 5 decimeters in a race that is 50 meters.
Answer:
The area of the rectangular prism is 40cm²
Step-by-step explanation:
To calculate the volume of a rectangular prism we have to use the following formula:
a = area
v = volume = 800 cm³
h = height = 20 cm
v = a * h
we replace the values that we know
800cm³ = a * 20cm
800cm³ / 20cm = a
40cm² = a
v = 70ft³
The area of the rectangular prism is 40cm²
D is the answer
Hope
This helps
