Callum must buy one packet of dog food every 10 days
Answer:
68m squared or the first option
Step-by-step explanation:
Yesterday I was ok s abs dish’s big
Red hots = x
Gummy bears = y
3x + y = 21
5x + 3y = 39
y = 21 - 3x
Bring that into 5x + 3y = 39
5x + 3(21 - 3x) = 39
5x + 63 - 9x = 39
4x = 24
x = 4
Bring that into 3x + y = 21
3(4) + y = 21
y = 21-12
y = 9
Hope this helps.
- Max