A car travels 17 miles on one gallon of gas. What is the range of values of y when x ranges from 170 to 340? If y is gallons and x is miles, the range of y is ?

The range of y is the interval [10,20]

Step-by-step explanation:

Let

x ----> the distance in miles

y ----> the number of gallons

The linear equation that represent this problem is

----> is a direct variation

isolate the variable y  

For x=170 miles ---->

For x=340 miles ---->

therefore

The range of y is the interval [10,20]

what is all that apply?

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w