Answer: 8
Step-by-step explanation:
Given
Lian has [tex]\$1.00[/tex] and she has twice as many dimes as nickels
Suppose she has [tex]x[/tex] nickels
So, the number of dimes is [tex]2x[/tex]
Nickel is equivalent to 5 cents and dime is equivalent to 10 cent
[tex]\therefore \ x(0.05)+2x(0.1)=1\\\Rightarrow 0.05x+0.2x=1\\\Rightarrow 0.25x=1\\\Rightarrow x=4[/tex]
Therefore she has 8 dimes with her.
