Trudy wants to buy a charm bracelet. Arlington Fine Jewelry charges $10 por chorm, plus $30 for the bracelet. Atkinson Jewolors, contrast, charges $20 per charm ond $10 for the bracelet. Il Trudy wants to add a certain number of charms to her brocolot, the cost will be the same at either Jewelry shop. What would the total cost of the bracelet be? Write a system of equations, graph them, and type the solution. ​

answer: - (a)

(b) 88 seats

step-by-step explanation:

given: in an auditorium, there are 22 seats in the first row and 28 seats in the second row.

thus first term=

second term=

the number of seats in a row continues to increase by 6 with each additional row.

⇒d= 6

a) given formula :

b)   let the number of seats (n) = 12

substitute n=12 in the explicit rule formed in (a)

∴there are 88 seats in 12 rows.

ending amount = beginning amount / (2^n)

where "n" = number of half-lives (or elapsed time / half-life)

ending amount = 50 mg / (2 ^10 / 5.3)

ending amount = 50 mg / (2 ^ 1.8867924528)

ending amount = 50 m / 3.6981210597

ending amount = 13.5203794557 mg

or about 13.5 mg remain

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