If x=3 what is the value of y given 2x+4y=50

Step-by-step explanation:

u replace the x with a 3

2x3+4y=50

6+4y=50

u kick the six next to the fifty with the opposite sign

4y=50-6

4y=44

divide both sides by 4

y=11

b.) 160 miles on a 5 gallons car

step-by-step explanation:

240/10=24 miles/gallon

160/5=32 miles/gallon

30/1=30 miles/gallon

168/6= 28 miles/gallon

32 miles/gallon is the most amount, so this is the best.

a. is correct