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11.02.2020 •
Mathematics
Two investments totaling $36,000 produce an annual income of $2715. One investment yields 6% per year, while the other yields 9% per year. How much is invested at each rate?
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Ответ:
3
Step-by-step explanation:
The given data shows that only 1 row was in use. We also know that Mr. Torres is an adult. So for the ease, lets use A for Adult and S for student.
The seating must fulfill the requirements that 4 students must be between adults such that it would be "A-S-S-S-S-A"
On a row of 11 seats, this should be the searing arrangements.
A-S-S-S-S-A-S-S-S-S-A ( for 1 row).
Mr. Torres could be any A .