Answer:
260 nesting turtles were at this sanctuary last year
Step-by-step explanation:
Given:
The number of nesting turtles decreased = 10%
Number of turtles present in sanctuary this year = 234
To Find:
Number of nesting turtles present at this sanctuary last year= ?
Solution:
Let the number of nesting turtles present at this sanctuary last year be x
Then,
x- 10% of x = Number of turtles present in sanctuary this year
x- 10% of x = 234
[tex]x- (\frac{10}{100} \times x) = 234[/tex]
[tex]x- (\frac{1}{10} \times x) = 234[/tex]
[tex]x- (\frac{x}{10}) = 234[/tex]
[tex]\frac{10x-x}{10}=234[/tex]
[tex]\frac{9x}{10}=234[/tex]
[tex] 9x=234\times 10[/tex]
[tex] 9x=2340[/tex]
[tex] x=\frac{2340}{9}[/tex]
x= 260
