Answer:
Mark is 9 years old.
Step-by-step explanation:
If Mark Bro is 5 years older and combined is 23, then you want to subtract 5 from 23 giving you 18. Now since there is mark and his brother that is 2. So divide 18 by 2 and you get 9. Mark is 9. Add 5 to the other 9 because mark is 9 and we divided by two so one nine still remains you get (14). Now you can check. Marks age plus his brothers 9+14=23.
Equation: mark=m
m = (23-5)/2
m=18/2
m=9
Answer:
65
Step-by-step explanation:
5^2=25
3x25= 75
75- (2x5)
65
The circumference of a circle divided by its diameter always may be written as pi:
Pi itself is close to 3.14; keep in mind pi is an irrational number, so it may never be equal to a number written in decimal form.
Also, pi is equal to c/d, but that doesn't mean that's the way pi is defined.
Answer: what you mean
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
f(x)=
If f(24), x=24
24-8=16
=4
4+3=7