Yes acciociative property works for subtraction.
A, no because it fails the vertical line test
Let's name Janet's age x
julie is then x-3 years old
and the brother is x-3-8=x-11
and all three of them: x+x-3+x-11 are 55
so we count:
2x-3+x-11=55
3x-3-11=55
3x-14=55
add 14 5o both sides:
3x=69
divide by 3:
x=23
so Janet is 23, Julie is 23-3=20 and the brother is 20-8=12 years old!
Answer:
1:12.
Step-by-step explanation:
The scale is 6 in : 2 yds.
There are 36 inches in a yard so this
= 6 : 72
= 1 : 12.
Answer:
3 months
Step-by-step explanation:
there are 12 months in a year.
.25 is equal to a quarter of a year
12/4=3
