Respuesta :

Answer:

The last year population was 66864.

Step-by-step explanation:

It is given that the population of a town grew 15% up to 76,894.

Let the last year population be x.

The population increased by 15% up to 76894.

[tex]x+\frac{15}{100}x=76894[/tex]

[tex]\frac{100x+15x}{100}=76894[/tex]

[tex]\frac{115x}{100}=76894[/tex]

[tex]115x=7689400[/tex]

[tex]x=66864.3478[/tex]

[tex]x\approx 66864[/tex]

Therefore, the last year population was 66864.

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