1 gallon = 30 miles
5 hours = 250 miles

Fraction of amount of gasoline used =

Answer is 25/36
Hope this helps. - M
The constant of proportionality is the relationship between variables that are directly proportional
The constant of proportionality of
is 45.2
The distance measured in miles is given as:

An equation that has a constant proportion is represented as:

Rewrite the equation in terms of d and t.
So, we have:

Where, k represents the proportionality constant.
By comparison:

Hence, the constant of proportionality is 45.2
Read more about constant of proportionality at:
brainly.com/question/1835116
Answer:
f(x)=x+2 Passes through
x-y=2 DOES NOT pass through
Step-by-step explanation:
Method- plug in x and see if the y matches the points. (1,3) (7,9)
f(x)=x+2
f(1)=1+2=3
f(7)=7+2=9
Matches!
x-y=2
1-y=2 --> y=-1
Does not match
4× 4 3/10= 4×43/10= 86/5= 17 1/5