Step-by-step explanation:
57=4w+13
57-13=4w
44=4w
w=11
Answer:
(3, -1)
x is 3
y is -1
Step-by-step explanation:
Solving for x:
2x+y=5
<em>Subtract y from both sides</em>
2x= -y+5
<em>Subtract 5 from both sides</em>
2x-5= -y
<em>Multiply both sides by 4</em>
8x-20= -4y
5x+4y=11
<em>Subtract 4y from both sides</em>
5x= -4y+11
<em>Subtract 11 from both sides</em>
5x-11= -4y
<u>Combine equations:</u>
5x-11=8x-20
<em>Subtract 5x from both sides</em>
-11=3x-20
<em>Add 20 to both sides</em>
9=3x
3x=9
<em>Divide both sides by 3</em>
x=3
Solving for y:
2x+y=5
<em>Subtract y from both sides</em>
2x= -y+5
-y+5=2x
<em>Multiply both sides by 5</em>
-5y+25=10x
5x+4y=11
<em>Subtract 4y from both sides</em>
5x= -4y+11
-4y+11=5x
<em>Multiply both sides by 2</em>
-8y+22=10x
<u>Combine equations:</u>
-8y+22= -5y+25
<em>Add 8y to both sides</em>
22=3y+25
<em>Divide both sides by 25</em>
-3=3y
3y= -3
<em>Divide both sides by 3</em>
y= -1
Answer:-abc
Step-by-step explanation:
To collect like terms of
8a^6bc-abc-8a^6bc
=8a^6bc-8a^6bc-abc
=-abc
In this function, x represents the number of 2) HOURS WORKED PER WEEK.
Profit is net of the fixed income of 8600 and variable cost of 22 hourly rate times the number of hours worked by the employee.
Example:
If the employee worked for 100 hours, then the profit would be:
P(x) = 8600 - 22(100)
P(x) = 8600 - 2200
P(x) = 6400
Even if the employee works 24 hours for the whole week or 7 days, they will still earn profit.
24 hours x 7 days = 168 hours
P(x) = 8600 - 22(168)
P(x) = 8600 - 3696
P(x) = 4904
Answer:
$431
Step-by-step explanation:
Given parameters:
Principal = $200
Time given for the amount to double = 13yrs
Unknown:
Amount in the account after 15yrs = ?
Solution:
To solve this problem, we need to find the interest rate on this investment.
I = 
I = interest
P = principal
R = Rate
T = time
Now,
if the amount should double,
Interest earned = $200
So;
200 = 
200 = 26 x R
R = 7.7%
Now, in 15yrs, this amount will be;
let us find the interest;
I = 
I = $231
The amount in the account will be:
Amount = Principal + Interest
Amount = $200 + $231 = $431
