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]

first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

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step-by-step explanation:

just sum

10 + 10 = 20