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 :)

answer: standard form is ax^2 + bx + c = 0

step-by-step explanation:

standard form is ax^2 + bx + c = 0

(2x + 1)(x - 2) = 0

distribute to get into standard form

2x^2 - 4x + x - 2 = 0

2x^2 - 3x - 2 = 0

a = 2, b= -3, c = -2

a is your answer

step-by-step explanation:

one of the most important purposes of surface treatment is to alter surface properties according to the requirement of specific applications. for example, hydrophobic coating has been utilized on windshield and eyeglasses. gold atom monolayer on substrate has become a popular surface bioconjugation strategy.