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3 years ago

Write an explicit formula for an, the nth term of the sequence 1, 11, 21

Mathematics

1 answer:

madreJ [45]3 years ago

5 0

Answer:

an = 10n - 9.

Step-by-step explanation:

This is arithmetic with first term a1 = 1 and common difference 10.

an = a1 + d(n-1)

= 1 + 10(n - 1)

= 1 + 10n - 10

= 10n - 9.

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Answer:

1) The discount is $4.05

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2) The discount is $10

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3) The discount is $2.6

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Step-by-step explanation:

1) What is the discount and sale price for a haircut that originally cost $22.50 with an 18% discount.

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$10\%\:of\:26.00\\=\frac{10}{100}\times 26.00\\=2.6$

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