Andrea drove 200 miles using 9 gallons of gas. at this rate, how many gallons of gas would she need to drive 420 miles?

Given : Andre drove 200 Miles using 9 Gallons of Gas

⇒ Andre drives 1 Mile using

⇒ Andre drives (420 × 1 Mile) using

⇒ Andre drives 420 Miles using 18.9 Gallons of Gas

i would say c is the best answer, hope it's right!

good luck! =)

cutie~

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it