Answer:
The two numbers are 9 and 3.
Step-by-step explanation:
x+y=12
x-y=6
---------
2x=18
x=18/2
x=9
9-y=6
y=9-6
y=3
Answer:
C
Step-by-step explanation:
i did it already
Answer:
3x+3
Step-by-step explanation:
You would just add the three sides so you would get x-3+x+x+6 and when you simplify you would get 3x+3 which would be the answer
Since ABC and DEF are similar, with ratio 1:2, it means that the sides of DEF are twice the size of ABC.
So, the perimeter of DEF is twice the perimeter of ABC, which means it is 46.
We can't pick any triplet of numbers that sum to 46 anyway, because in every triangle the sum of two sides must exceed the third one.
So, for example, the sides of DEF can't be 1, 5, 40, because 1+5 < 40.
A good option (although there are infinite possibility) could be for example 15, 11 and 20.
