Answer:
60
Step-by-step explanation:
5x+2x=7x
7x=140 (since after the increase, there are 140 animals in total)
x=140/7
x=20
therefre 5x=5(20)=100 animals
2x=2(20)=40
initially there were 100+40=140 animals
there finding the increase
5x-2x=100-40
=60 animals
therefore 60 animals were increased
Answer:
The increase was 84 animals
Step-by-step explanation:
Let the initial number of animals be x
[tex] { \tt{\frac{5}{2} \: of \: x = 140}} \\ \\ { \tt{\frac{5}{2} x = 140}} \\ \\ { \tt{5x = (2 \times 140)}} \\ \\ { \tt{5x = 280}} \\ \\ { \tt{x = 56}}[/tex]
Therefore, initially before increase, the animals were 56
Hence;
[tex]{ \tt{increase = 140 - 56}} \\ { \boxed{ \tt{ \: increase =84 }}}[/tex]
