N = nickels and q = quarters
0.05n + 0.25q = 1.90
n = 2q + 3
0.05(2q + 3) + 0.25q = 1.90
0.10q + 0.15 + 0.25q = 1.90
0.10q + 0.25q = 1.90 - 0.15
0.35q = 1.75
q = 1.75/0.35
q = 5 ......there are 5 quarters
n = 2q + 3
n = 2(5) + 3
n = 10 + 3
n = 13 <=== there are 13 nickels
Answer:
19 mm
Step-by-step explanation:
A penny is not that large, and you can fit multiple pennies in the palm of your hand. This means that the only reasonable measurement is 19 mm, (& 8 cm, but that is only if you have really large hands). Therefore, (A) is your choice.
~
Answer:
V(t) = 2500(0.86)^t where t = the year.
Step-by-step explanation:
Each year the value will be 100 - 14 = 86% ( - 0.86) of the previous year.
Step-by-step explanation:
1. d = rt
Divide t from both sides.
2. PV = nRT
Divide P from both sides.
3. 
Add g to both sides.
= g + a
Now multiply by 2 on both sides.
x = 2(g + a)
(or, x = 2g + 2a)
4. g
Divide g from both sides.
Now subtract 1.5 from both sides.
h = 
5. 
n = 
Answer: 5.5%
Step-by-step explanation: 5.5% of 38% is $2.09 adding it to $38.00 makes its $40.09
