4 The number of miles represented on a map is directly proportional to the number of centimeters measured on a map. A certain Texas map uses the scale 2 cm = 150 miles.
Part A
Determine the constant of proportionality and explain its meaning in the problem situation.

Part B
If x represents the number of centimeters and y represents the number of miles, write a
direct variation equation to represent the number of miles as a function of the number of
centimeters measured on the map.

Part C
If the distance on a Texas map from San Marcos to Austin is 3.8 cm lang, what is the actual
distance between the two cities?

Part D
According to the map, how many centimeters would represent a distance of 525 miles?

42.4

step-by-step explanation:

convert to decimal

the ratio of grapes to blueberries she should use is 12: 3

step-by-step explanation:

if mandie is making 15 cups of fruit salad, the ratio of grapes to blueberries she should use is 12: 3.

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation:

answer: i think one of the answer is $150 and $300?

step-by-step explanation: