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777dan777 [17]
3 years ago
15

What is the 20th term in the sequence. f(n) = 9n - 12

Mathematics
1 answer:
Lerok [7]3 years ago
6 0

Answer:

f(20) = 168

Step-by-step explanation:

To find the 20th term, substitute n = 20 into f(n) , that is

f(20) = 9(20) - 12 = 180 - 12 = 168

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roberto made a 74 on last weeks math quiz. this week he made an 85 on the quiz. which best describes the percent of increase in
laila [671]

The percentage of increase in Roberto score is 14.87%, if Roberto made a 74 on last weeks math quiz. this week he made an 85 on the quiz.

Step-by-step explanation:

The given is,

               Roberto score on math quiz at last week is 74

               This week he made an 85 on the quiz

Step:1

            Formula to calculate the percentage of increase the score,

                  Percentage of increase = \frac{Final score-Starting score}{Starting score} × 100...........(1)

            From the given,

                  Final score = 85

                  Starting score = 74

           Equation (1) becomes,

                  Percentage of increase =( \frac{85-74}{74}) ×  100

                                                       = (\frac{11}{74}) ×  100

                                                       = 0.1486486  ×  100

                                                       = 14.86486 %

                                                      ≅ 14.87 %

              Percentage of increase = 14.87 %

Result:

        The percentage of increase in Roberto score is 14.87%, if Roberto made a 74 on last weeks math quiz. this week he made an 85 on the quiz.

                                                                   

         

7 0
3 years ago
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