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: C. f(x)=x^2+16x+63
Vertex=(8,-1)
Focus=(8,-3/4)
Axis of Symmertry= x=8
Directrix= y=-5/4
I hope this helps you!
3x-47=65
3x=65+47
3x=112
x=37.3
56213 o 75082106
espero te sirva
12.2 gallons for $1.87, I would spend probably 2.87 for 24.4 gallons
The answer is 153.94 units