$565+$65= 630
630/30 would be 21
it would take him 21 weeks to pay off his sister and buy the bike
Answer:
The solution is (-3, -2).
Step-by-step explanation:
Please note that if you simply add these 2 equations together, 9x - 9x = 0, and you are then left with -5y = 10. Thus, y = -2. Subbing -2 for y in the first equation, we get 9x - 8(-2) = -11, or 9x + 16 = -11.
Subtracting 16 from both sides, we get 9x = -27, so that x = -3.
The solution is (-3, -2).
243 because if you divide and subtract it would culminate to the amount of people
12 divided by 2 is 6. So he will need a 6 cups of yogurt
