X=number of miles
stars cost is 35+price for driving
price for driving=cost per mile times number oof miles
starts=35+0.25x
express is 17+0.4x
when will prices be equal?
set eaqual to each other
35+0.25x=17+0.4x
subtract 0.25x from both sides
35=17+0.15x
subtract 17 from both sides
18=0.15x
divide both sides by 0.15
120=x
answer is 120 miles
answer is D
Answer:
To find the average of a set of fractions,add all fractions, then divide the sum by the number of fractions as follows: Convert the integers and mixed numbers to improper fractions.
Step-by-step explanation:
It’s gotta be C since the “b” term in the equation shows the y intercept; -3 is less than the rest. Don’t listen to the other guy commenting here!
Answer:
9.9
Step-by-step explanation:
To solve this problem, we first need to know that the whole length of the circunference is related to a central angle of 2pi radians. Then, we can solve using a rule of three to find the radius:
arc of 6.6 -> central angle of 2/3
arc of 2*pi*r -> central angle of 2pi
2*pi*r * (2/3) = 6.6 * 2*pi
r * (2/3) = 6.6
r = 6.6 / (2/3) = 9.9
So the length of the radius is 9.9