In addition to getting federal support for building roads, the individual state contributes $750,000 of the state gasoline tax money to build 1 mile of highway. The state gasoline tax is $1.20 a gallon. How many gallons of gasoline must be sold to pro-
duce enough tax money to build 1 mile of highway?

625,000 gallons

Step-by-step explanation

You know that it cost $750,000 of gas tax money to build 1 mile of highway.

Since they are getting $1.20 for each gallon of gas sold, you would only have to divide the two numbers to find out how many gallons need to be sold.

750,000 ÷  1.2  =  625,000 gallons

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b