On a map, 1 inch equals 5 miles. Two cities are 4 inches apart on the map. What is the actual distance between the cities?

20 miles

Step-by-step explanation:

On the map:

1 inch = 5 miles

Use the inches, "i" as a variable

Write an equation

1i = 5

Two cities are 4 inches apart on the map

Multiply both sides of the equation by 4

4(1i) = 4(5)

4i = 20

20

The actual distance between the cities is 20 miles

Hope this helps :)

y = 2x

step-by-step explanation:

if you divide each number in the sequence, you'll see that they all have a multiple factor of 2. each number in the series, and any other numbers which may continue, will be multiplied by 2. therefore, y is the next number in the sequence, and x is the current one, so, our formula will be y = 2x.