Bethany has $3.10 in nickels and dimes. She has a total of 44 coins. What is the value of the nickels Bethany has?

$0.90

$1.30

$1.80

$2.60

0.05n + 0.1d = 3.10

n + d = 44

d = 44 - n

Substituting to the first equation:

0.05n + 0.1 (44 - n) = 3.10

0.05n + 4.4 - 0.1n = 3.10

-0.05n = 3.10 - 4.4

n = 26

Obtaining the value of nickels:

26 * 0.05 = 1.3

Therefore, the value of nickels that Bethany has is $1.30