Answer:
58 number of dimes.
A. $5.8
B. 131.602 grams.
Step-by-step explanation:
A U.S. dime has a thickness of [tex]1\frac{7}{20} = 1.35[/tex] mm.
Now, Gary has a stack of dimes that is [tex]78\frac{3}{10} = 78.3[/tex] mm in height.
Therefore, Gary has [tex]\frac{78.3}{1.35} = 58[/tex] dimes in total.
A. Now, each dime is equivalent to $0.1.
Therefore, the total value of the dimes that Gary has is $(0.1 × 58) = $5.8.
B. If each dime weighs 2.269 grams, then the mass of the entire stack of dimes will be (2.269 × 58) = 131.602 grams. (Answer)