contestada

The orthodontist estimated how long brian would have to wear braces when she put them on his teeth. brian was pleasantly surprised when, after 16 months, the orthodontist said it was time to take the braces off. her original estimate had been 12.5% longer than that. how long was the original estimate?

Respuesta :

Using the given information, the original estimate was 18 months

Percentages

From the question, we are to determine how long the original estimate was

Let the original estimate the x

Then, from the given information, we ca write that

x = 16 + (12.5% × 16)

x = 16 + (0.125 × 16)

NOTE: 12.5%  = 12.5/100 = 0.125

∴ x = 16 + 2

x = 18

Hence, the original estimate was 18 months

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