H + c = 605
c = h + 55
h + h + 55 = 605
2h + 55 = 605
2h = 605 - 55
2h = 550
h = 550/2
h = 275 <== there were 275 hamburgers sold on Friday
c = h + 55
c = 275 + 55
C = 330...there were 330 cheeseburgers sold on Friday
Answer:
i dont know how to write it but text me
Step-by-step explanation:
OOH USE YOUR BRAiN AND THINK :D
15x-6
21x/2+3. Multiply everything by 2: 30x-12=21x+6. Combine like terms: 9x=18. Get the unknown by itself: 9x/9=X. 18/9=2. X is less than or equal to 2 :)
M ∪ N = ____.<br><br>
{3, 4, 6, 7, 9}<br>
{3, 4, 5, 6, 8, 9}<br>
{2, 4, 6, 8}
Bezzdna [24]
{3, 4, 6, 7, 9}????????????/
