Question

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

a. $0.90
b. $1.30
c. $1.80
d. $2.60

Answer 1

Okay I will help you @justsmile531 k just give me a minute to solve

Answer 2

ok

Answer 3

I say A

Answer 4

I am not sure though

Answer 5

n + d = 44 ----> d = 44 - n
0.05n + .10d = 3.10

now sub 44 - n in for d in the 2nd equation
0.05n + .10(44 - n) = 3.10
0.05n + 4.40 - 0.10n = 3.10
0.05n - 0.10n = 3.10 - 4.40
-0.05n = - 1.30
n = -1.30/-0.05
n = 26

n + d = 44
26 + d = 44
d = 44 - 26
d = 18

check..
0.05n + 0.10d = 3.10
0.05(26) + 0.10(18) = 3.10
1.30 + 1.80 = 3.10
3.10 = 3.10 (correct)

There is 26 nickels and 18 dimes. And if she has 26 nickels, she has $ 1.30 in nickels

Answer 6

@justsmile531 ...your answer is b

Answer 7

Thank you

Answer 8

sure thing :)