Three times a number (n) is 36 less than five times the number (n). What is the number?

18

Step-by-step explanation:    

To find the number, write an algebraic equation with the given information. Let the variable n represent the unknown number.

Now, break it by parts - "three times a number" would be . The "is" means that it equals something, giving us . "36 less than 5 times the number" would be subtracting 36 from whatever 5 times the number is: . So, put it all together and it is .

Next, solve the equation for n. The answer will be the number.

Thus, the number is 18.

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation:

26

step-by-step explanation: