whohelpme
04.02.2021 •
Mathematics
Sam has $3.05, but all of it is nickles. If one nickle is worth $0.05, how many nickles does Sam have?
$3.10 nickles
51 nickles
305 nickles
0.15 nickles
61 nickles
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Ответ:
61 nickels.
Step-by-step explanation:
$0.05 : 1 Nickel
$1 : 1/0.05 = 20 nickels
If $1 equals 20 nickels, then $3.05 equals:
3.05 x 20 = 61 nickels
Ответ:
so, 2x+3 = 18
or, x = (18-3)/2 = 7.5