Answer:
12 dimes and 18 nickels
Step-by-step explanation:
Equations given by word problem:
n + d = 30
0.05n + 0.1d= 2.10
How I solved them:
d= 30 - n
0.05n + 0.1(30 - n)= 2.10
0.05n + 3 - 0.1n= 2.10
-0.05n= -.09
Divide both sides by -0.05
n= 18
18 + d = 30
d= 12
Answer:
точка шлифованияrewq
Step-by-step explanation:
Answer:
45
Step-by-step explanation:
yes yes i think this is very correct very yes
Answer:
30
Step-by-step explanation:
i did the math lol
Answer:
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Step-by-step explanation:
