Question

Please Help?




Jackson put fifteen gallons of gasoline in his dad"s car and spent thirty dollars. Use a direct variation to determine how many gallons of gasoline he put in his mom"s car if he spent twenty-six dollars.

Answer 1

direct varation
y=kx
if y cost and x gallon units
if he paid 30 dollar for 15 gallons
then we have 30=k(15)
k=30/15=2
now we know k
y=2x <=== this direct varation
we can use it to find
if he spent 26 $
how many gallons?
26=2x solve for x

Answer 2

k=2 is the prince per unit of gasoline

Answer 3

is that 13 gallons?

Answer 4

price*

Answer 5

yes

Answer 6

correct

Answer 7

thanks!!!!!

Answer 8

np!