T^2-t=12
t^2-t-12=0
(t-4)(t+3)=0
t=4, -3
Answer:
6
Step-by-step explanation:
Answer:
<h2> 52 chickens</h2>
Step-by-step explanation:
Step one:'
given
we are told that the total number of animals is 169
the ratio of horses to chickens= 9:4
total ratio= 13
Required:
number of chickens
Applying part to all principle, let the number of chickens be x
4/13=x/169
cross multiply
4*169=13*x
divide both sides by 13
x=4*169/13
x=676/13
x=52
There are 52 chickens
21 + 28 = 49 students
Ration of history 21 to students 49 = d)21:49
E porque ya lo use y es facil
