3x+3 is the correct answer
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.
Answer:
-12.6
Step-by-step explanation:
the value of m is 24°
Step-by-step explanation:
m+7+2m+11=90° ( being complementary angle)
3m+18°= 90°
3m =90- 18°
3m = 72
m= 72/3
m=24°