B 15% if you divide 100/20 you get 5 what is 5x3 15
Step-by-step explanation:
» Assume x is the total amount.
First to find the area of briins pantry we divide 81 square feet with 9 so we get 9 square feet as the area of brinns pantry. And the since Area = length × width , so length will be Area/ width so 9 square feet divided by 3 feet equals 3 feet. Length = 3 feet
Answer:
Step-by-step explanation:
step 1
Find the radius of the circle
we know that
The circumference of a circle is equal to
we have
substitute the values
step 2
Find the area of the circle
The area of the circle is equal to
substitute the values
X² + 3x = 10
Convert to standard form.
x² + 3x - 10 = 0
factor x² = x * x
factor -10 = 5 * -2
(x + 5) (x - 2) = 0
x(x -2) + 5(x-2) = 0
x² - 2x + 5x - 10 = 0
x² + 3x - 10 = 0
x + 5 = 0 x² + 3x = 10
x = -5 -5² + 3(-5) = 10
25 - 15 = 10
10 = 10
x - 2 = 0 x² + 3x = 10
x = 2 2² + 3(2) = 10
4 + 6 = 10
10 = 10