5x+2y=7
7x-2y=5 its subtract not add
The x terms add up to 4x and the numbers add up to 12
4x + 12 = 4(x + 3)
Its C
Answer:
Step-by-step explanation:
(1) P = 5G
(2) G + P = 30
Substituting (1) into (2) gives:
G + 5G = 30
6G = 30
G =5
So there are 5 green pencils.
Now using that in (1) gives us P = 5 x 5 = 25
So there are 5 green pencils and 25 purple pencils.
Answer:
17
Step-by-step explanation:
it has to be under 90 degrees
Answer:
1. 144km
2. 96 km
3. 200 km
Step-by-step explanation:
see image
