Answer:
6
Step-by-step explanation:
Answer:
I can answer 2-19.
Step-by-step explanation:
The first equation is x=0.
the second equation has no solution.
Given:
18 points on her quiz
24 points is equivalent to 100%
18 is to 24 or 18/24
x is to 100% or x/100%
18/24 = x/100%
18 * 100% = 24x
1800% = 24x
1800%/24 = x
75% = x
18/24 = 75%/100%
18 * 100% = 24 * 75%
1800% = 1800%
Answer:

Step-by-step explanation:
the unit of length is meter,
so, 80cm=0.8cm, 10cm=0.1m
the length of the rail=
=
10000:100*11=1100 income per year
21000-10000=11000 need to have income
11000:1100=10 years will pass time