Answer:
Step-by-step explanation:
From the problem statement, we can setup the following equation:

where
is the number of employees being trained.
Solving for
will give us the answer:



Answer:
24
Step-by-step explanation:
Given that:
Total number of members who race = 18
Ratio of racers to divers = 6 : 2
To find:
Total number of members of the team = ?
Solution:
Given the ratio = 6 : 2
As per the ratio given, we can let the number of racers = 
and
As per the ratio given, we can let the number of divers = 
As the swim team members can either race or dive, we can say that:
Total number of members on the team = Number of racers + Number of divers
Total number of members on the team = 
As per the question statement, we are given that:

Therefore, total number of team members = 8
3 = <em>24</em>
Answer:

Step-by-step explanation:
So what we should do is first expand. What I did was I did it one step at a time, starting with (2x+5)(2x+5). This gave me
. I then continued to do this, until I got
. Then you asked me what this would be subtracted from 1. So, what I did was set it so that it would follow this rule, making it
.
After this, I just simplified.
1. there are two methods to solve this system
I.substition
from the first relation we can deduct
2a-b=4
2a=4+b
a=(4+b)/2
now we substitute a in the second relation
(4+b)/2+b=5
we multiply by 2
4+b+2b=10
3b=6
b=6/3=2
a+2=5
a=3
II.reduction
2a-b=4
a+b=5
we can add the two relations together
2a+a-b+b=4+5
3a=9
a=3
3+b=5
b=2
Answer:
480
Step-by-step explanation:
We can set up a proportion:
#students that eat carrots / #students surveyed=#students that eat carrots / #students surveyed
x will equal the number of students in Sarah's school who eat carrots.
30/50 = x/800
We can simplify
3/5=x/800
We cross multiply
5x=3*800
5x=2400
x=480
Hope this helps!