Answer:
$2158.8
Step-by-step explanation:
x/89,950= 2.4/100
89,950(2.4)= 215880
215880/100 gets you 2158.8. hope this helped
(x+y=31)2
2x-y=11
2x+2y=62
- 2x -y=11
3y=51
y=17
x+17=31
x=14
y-x=3
Answer:
x=4
Step-by-step explanation:
1. distributive property
2. combine like terms
3. inverse operation
4. division or multiplication property
Solve for y
let's put our equation first
Flip the equation
Now follow the rule of 
_________________________
_________________________
add 
to both sides
Divide both sides by 
would equal 
Answer:
A
Step-by-step explanation:
The first answer is correct because we have a decay factor.
The sample is losing mass, so the number that is being multiplied by a power of x must be less than 1.
If the second answer were used, then the sample would be gaining mass.
