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There are 400 fish in a large tank. Model, then write an expression to find thenumber of fish in the tank if the number of fish increases by 23%.

Sagot :

Let x be the total number of fish in the tank.

We know that at the beggining we had 400 fish and that then the number increased by 23%, this means that the total number of fish are:

[tex]\begin{gathered} x=400+400\cdot0.23 \\ x=400(1+0.23) \\ x=400(1.23) \end{gathered}[/tex]

Therefore the nynumber of fish at the end is:

[tex]x=400(1.23)[/tex]