A coin bank contains only quarters and dimes. The total value of the coins in the bank is $8.80. If the dimes were quarters and the quarters were dimes, the coins' total value would be $7.30. Find the number of dimes in the bank PLEASE EXPLAIN ANSWER

Step-by-step explanation:

Let the number of dimes be d and quarters be q

The value is $8.80 = 880¢, so:

If the dimes were quarters and the quarters were dimes, the coins' total value would be $7.30 or 730¢

Now we have 2 equations. Solving the system by elimination, subtract 5 times the second equation from twice the first equation:

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.

1.true 2.false? ? i think. .

step-by-step explanation: