Answer:
7:5
Step-by-step explanation:
49/7 = 7 and 35/7 = 5
to get a ratio, divide both side by the same number that is a facttor for both.
See https://web2.0calc.com/questions/help_29603.
Answer:
Unlike terms
Step-by-step explanation:
If it was 4y and 5y it would be like. Adding the x though makes them unlike terms, you cannot combine them
Answer:
let the number of cows = x
let the number of chickens = y
since there are 42 heads:
x + y = 42
and since a cow has 4 legs, and a chicken has 2
4x + 2y = 144
from first equation:
x + y = 42
x = 42 - y (now, we will substitute this in the second equation)
4(42 - y) + 2y = 144
168 - 4y + 2y = 144
2y = 168 - 144
2y = 24
y = 12
now, we know the number of chickens. we will replace y with 12 in the first equation since it is more simpler
x + 12 = 42
x = 30
So, there are 30 cows and 12 chickens
Brainly it if you find the answer helpful
