Answer:
-1
Step-by-step explanation:
5/1 would equal 5.
5-6=-1
hope it helps!
Answer:
15
Step-by-step explanation:
Given the function

and 
let f(x)=y
Substitute in f(x)

From the definition inverse function
if
⇒ 
Substitute this in the above expression

Substitute y=10
⇒

Therefore a=15
Same as the other one
part A)
CD 12,000 at 6%, how much is that? (6/100) * 12000
CB 4000 at 5%, how much is that? (5/100) * 4000
part B)
total investment was 12000 + 4000 = 16000
the earned interest above are 720 and 200 respectively
total yield was, 720 + 200 = 920
if 16000 is the 100%, how much is 920 in percentage?

solve for "x"
Step-by-step explanation:

Answer: Ali would need to drive 350 miles for the two plans to cost the same.
Step-by-step explanation:
This question can be solved by creating two equations using the information supplied in the question and then solving these simultaneously.
Let the cost be C.
Let the number of miles be M.
Let the initial payment be i.
Let the rate per mile driven be R.
Plan 1:
C = i+R×M
C = 70+0.60M ... equation 1
Plan 2:
C = i+R×M
C = 0+0.80M
C = 0.80M ...equation 2
Substituting equation 2 into equation 1:
0.80M = 70+0.60M
0.80-0.60M = 70
0.20M = 70
M = 70/0.20
M = 350 miles