-. A collection of 40 coins is made up of nickels and dimes and is worth $2.60. Find how many were quarters and how many were nickels.

9514 1404 393

Step-by-step explanation:

Let d represent the number of dimes. Then 40-d is the number of nickels. The value is ...

  0.10d +0.05(40 -d) = 2.60

  0.05d = 0.60 . . . . . subtract 2.00

  d = 0.60/0.05 = 12 . . . . . the number of dimes

  40 -d = 40 -12 = 28 . . . . .the number of nickels

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There are 0 quarters. There are 28 nickels.

answer: idk

step-by-step explanation:

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3