X^2 = 16/9
X = 4/3
Length of X is 1 1/3 inches
Wx+yz=bc
-yz. -yz
Wx=bc-yz
Wx/W=bc-yz/W
x=bc-yz/W
10 days is twice the half-life. After 5 days, can expect

grams to remain; after another 5 days, you'd be left with

grams.
Answer:
The answer is c and we'll use c to get the actual answers.
A) n + q = 104
B) .05n + .25q = 22 we'll multiply B) by -4
B) -.2n -1q = -88 then we add A)
A) n + q = 104 which equals
.8n = 16
n = 20 nickels
q = 84 quarters
20 nickels = $1
84 quarters = $21
Successful!!!
Step-by-step explanation: