Answer:
a = 2.4
Step-by-step explanation:
The problem statement tells you ...
b/a = 6
b - a = 12
Using the first equation, we can write an expression for b:
b = 6a . . . . . . . multiply both sides by "a"
This can be substituted into the second equation to find a value for "a":
6a -a = 12
5a = 12
a = 12/5 = 2.4
The value of a is 2.4.
-5/2x+15/2
That is the simplified version. Let me know if you need any work...
Answer:
Amanda's
Step-by-step explanation:
Given :
3/6 + 2/4
The L. C. M of 6 and 4 = 12
(6 + 6) / 12
12 / 12
= 1
Renne's result = 5/10
Amanda's result = 1 whole
Hence, Amanda's result makes more sense.
The function is:
B ( t ) = 4 * e^(0.8 t)
4 * e^(0.8 t) = 400
e^(0.8 t) = 400: 4
e^(0.8 t) = 100 / ln
ln e^(0.8 t) = ln 100 ( and since: ln e = 1 and ln e^x = x * ln e )
0.8 t = 4.6
t = 4.6 : 0.8 = 5.76 ≈ 6
Answer:
D ) 6 hours.
Check the picture below.
make sure your calculator is in Degree mode.
