Respuesta :
Answer:
The actual tuition is $14,375
Step-by-step explanation:
Percentages
Let's call X the original tuition, and let's assume it's greater than 10,000 so far. We'll analyze the first option:
Dean of Admissions suggests increasing tuition by 10% each year for the next two years. The first year the tuition would be
[tex]\displaystyle X+\frac{10}{100}X=1.1X[/tex]
The second-year the tuition would increase another 10% of the last amount, so it would end being
[tex]\displaystyle 1.1X+\frac{10}{100}(1.1X)=1.21X[/tex]
Now for the second option
The Provost suggests that each year they increase the tuition by 30% of the amount of the tuition above $10,000. The first increase would be
[tex]\displaystyle \frac{30}{100}(X-10,000)=0.3X-3,000[/tex]
And the new tuition at the end of the first year would be
[tex]\displaystyle X+0.3X-3,000=1.3X-3,000[/tex]
This new amount would be increased by applying the same rule, so the second-year increase would be
[tex]\displaystyle \frac{30}{100}(1.3X-3,000-10,000)=0.39X-3,900[/tex]
And the final tuition would be
[tex]1.3X-3,000+0.39X-3,900=1.69X-6,900[/tex]
The Treasurer points out that the tuition will be the same under any scheme, so
[tex]1.69X-6,900=1.21X[/tex]
Rearranging
[tex]1.69X-1.21X=6,900[/tex]
[tex]0.48X=6,900[/tex]
[tex]\displaystyle X=\frac{6,900}{0.48}[/tex]
[tex]\boxed{X=14,375}[/tex]
The actual tuition is $14,375