I assume you're looking for the number:
0.5n + 9 = 21
- 9
0.5n = 12
÷ 0.5
n = 24
So the beginning number is 24, hope this helps!
Answer: Maggie is 29 years old
Step-by-step explanation:
12*3=36
36-7=29
29 + 12 = 41
Answer:
3.4296913278%
Step-by-step explanation:
1200-204.10 =996.9
7
204.1
x 100% = 3.4296913278% Theres probably another way to do this and im pretty sure this is correct
Answer:
x-17.5
Step-by-step explanation:
angles in a triangle add to 180
3x+8+(2x-3)+5x = 180
simplify(collect like terms):
10x + 5 = 180
solve:
10x = 175
x=17.5
Step-by-step explanation:
step 1. a12 = -5(12) + 32
step 2. a12 = -60 + 32
step 3. a12 = -28.
