This is how I'd set it up:
405/20 = 243/x
this means the mpg (miles / gallons) for 1 situation is the same as the mpg for the other situation (because the rate is the same)
then just cross multiply and solve:
405x=243*20 or 405x=4860 or x = 12
he would need 12 gallons of gas for 243 miles
Answer:
g=-4
Step-by-step explanation:
Answer is 12
K=y/x (rise over run)
The same rise over run happens to the next point, up 12 over 1
Answer:4
Step-by-step explanation:i want brainist plz
So we have 299790000, we want to have only one digit in front of the decimal, 2.9979x10^9
hope this helps :)