Respuesta :
Answer:
Cheesburger costs $3. Shake costs $4.
Step-by-step explanation:
c is cheesburger and s is large shake.
5c+2s=23
3c+3s=21
15c+6s=69
-6c-6s=-42
9c=27
c=3
Answer:
Cheesburger costs $3. Shake costs $4.
Step-by-step explanation:
c is cheesburger and s is large shake.
5c+2s=23
3c+3s=21
15c+6s=69
-6c-6s=-42
9c=27
c=3