A car with 12 gallons of gasoline drives 312 miles until the tank is empty. Write a linear equation that describes the amount of gas left in the car, y, after driving x miles.
The linear equation is . (Type your answer in slope-intercept form. Use integers or simplified fractions for any numbers in the expression.) *

The linear equation is 312 - (312/12) X = Y.

Step-by-step explanation:

Given that a car with 12 gallons of gasoline drives 312 miles until the tank is empty, to determine a linear equation that describes the amount of gas left in the car, Y, after driving X miles, the following calculation must be performed:

312 - (312/12) X = Y

312 - 26X = Y

So, for example, if you were driving 4 miles, the equation would work as follows:

312 - 26 x 4 = Y

312 - 104 = Y

208 = Y

2

step-by-step explanation:

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations: