Answer:
-45
Step-by-step explanation:
8 - 8 / 2 + 7^2
PEMDAS Parenthesis Exponents Multiplication Division Addition Subtraction
Exponents 7^2 = 49
8 - 8 / 2 + 49
Division 8 / 2 = 4
8 - 4 + 49
Addition 4 + 49 = 53
8 - 53
Subtraction 8 - 53 = -45
-45
Answer:
∠ F = 80°
Step-by-step explanation:
The sum of the interior angles of a polygon is
sum = 180° (n - 2) ← n is the number of sides
Here n = 6 , then
sum = 180° × 4 = 720°
Sum the interior angles and equate to 720
7x + 7x + 4x + 7x + 7x + 4x = 720
36x = 720 ( divide both sides by 36 )
x = 20
Then
∠ F = 4x = 4 × 20° = 80°
First, we need to find her current age. If she was 12 years old 3 years ago, her current age is 12 + 3 which is 15. If the ratio of Sarah's age to Keisha's age is 4:5 (Sarah's age is the 4 and Keisha's age is the 5).
If we take 15 and divide that by 5 (her ratio), then you get 3. Now multiply 3 by 4 to find Sarah's age. We get 12. Nine years from now, her age is 12 + 9 which is 21.
There is the answer. Sarah's age in 9 years is 21 years old. I hope this helps.
Answer:
500
Step-by-step explanation:
