So you are trying to find out how many minutes Brain was billed for, so:
$18.41 - $5 =$13.41
since he gets billed 9 cents a minute he has to pay $13.41!!
Answer
The scale factor is
Explanation
We have to ways to find the scale factor here:
1. Find the unit fraction from inches to miles; in other words, we need to divide the distance between the cities on the map (in inches) by the actual distance between the cities.
We can conclude that the scale factor is
2. Let be the scale factor.
We know form our problem that 24 miles times the scale factor is equal 4 1/2 inches, so we can set up an equation an solve for :
Just like before, we can conclude that the scale factor is
B.
Answer
6 inches separate the cities on the map
Explanation
We know that our scale factor is 1/4 inch = 1 mile, so we can create a conversion factor to convert 24 miles to inches. Since we need to convert from miles to inches, the denominator of our conversion factor must be 1 mile so we can cancel miles out. Notice that we can also express 1/4 inch as 0.25 inch to simplify our calculations:
We can conclude that if the conversion factor is 1/4 inch = 1 mile, 6 inches separate the cities on the map.
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Answer: 6π
Step-by-step explanation:
Area of a circle = πr².
To find the circumference, we have to find the radius first
Since the area of the circle in question is 9πcm²
9π = πr²
r² = 9π/π
r² = 9
r = +/-√9
= +/- 3.
To find the circumference now, we substitute for r in the formula above
Circumference = 2πr
= 2 x π x 3
= 6π.
Don't forget the π there must not be define
So the answer = 6π
Answer:
$5.12
Step-by-step explanation:
Convert 100 to US dollars.