Answer:
The answer to your question is: It could be letter A but power 5 is not necessary.
Step-by-step explanation:
Simplify like terms
1.- Remove parenthesis
(3m² + m - 5) + (3 - 6m² + 4m + 5m)
3m² + m - 5 + 3 - 6m² + 4m + 5m
2.- Group like terms
(3m² - 6m²) + (m + 4m + 5m) + (3 - 5)
3.- Simplify
- 3m² + 10m - 2
Answer:
A. 1.50 x 12 = 13.5 for 12 gallons
B. i dont know sorry
C. 12.60 divided by 1.50 = 8.4 gallons
Step-by-step explanation:
Your answer would be 0.05 per ounce
Horse = x = 1 head and 4 feet
Chicken =y = 1 head and 2 feet
Horse + chicken = x + y = 43 ( total heads)
Horse = 43 - y
4x + 2y = 122
4(43-y) + 2y = 122
Simplify:
172-4y + 2y = 122
Combine like terms
172-2y = 122
Subtract 172 from both sides
-2y = -50
Divide both sides by-2
Y = 25
X + y = 43
X + 25 = 43
X = 18
There are 18 horses and 25 chickens.
