Step-by-step explanation:
1 mole of any substance = 6.022 * 10²³ molecules.
Number of moles of CO2
= (4.5 * 10¹⁶)/(6.022 * 10²³)
= 0.75 * 10^(-7)
= 7.5 * 10^(-8) mol.
Acute because all angles are less than 90 degrees
Answer:
fishing rod = $78, fishing reel=$7
Step-by-step explanation:
A fishing rod: x
A fishing reel: y
2x+4y=184
6x+3y=489
Simplify.
x+2y=92
2x+y=163
Add the equations.
3x+3y=255
Multiply by 2/3.
2x+2y=170
subtract.
x=78
y=7
Use the formula for simple interest:
i = p* r* t
Here, $120 = $2000*r* (18/12 years)
$120
Then r = ------------------ = 0.04. That's 4% per year.
$2000(1.5)
