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15. At his last appointment, the patient weighed 165 pounds. Today in the office the patient weighs 178 pounds. What is the percent increase in the patient's weight? Roundyour answer to the whole percent.a. O 8%b. O 7.8%CO 7%d. None of the above

Respuesta :

In order to determine the percent increase, proceed as follow:

Subtract 165 to 178:

178 - 165 = 13

Now, consider that 13 is the x percent of 165, then, you can write:

[tex]\frac{x}{100}\cdot165=13[/tex]

by solving for x and by simplifying, you have:

[tex]x=13\cdot\frac{100}{165}\approx7.8[/tex]

Hence, the percent increase is approximately 7.8%

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