This is simple algebra :)
First, we can write the question as an algebraic equation.
Given that Doug spent 40 more hours than Laura, we can represent Laura as (x) and Doug as (x+40).
"Doug and Laura spent a combined 250 hours." So we can write this as
(x) + (x+40) = 250
Now simplify:
2x + 40 = 250
Solve x by subtracting 40 from both sides of the equation:
2x = 210
Therefore:
x = 210/2
= 105
So Laura (x) spent 105 hours!
Answer:
The value if x is 0.9875.
Step-by-step explanation:
First, we have to get rid of brackets by expanding :
Next you have to collect like terms :
Lastly, you can solve x :
Answer:
The answer is 2145$
Step-by-step explanation:
825×0.04=33
Once every quarter of a year means the number of years × 4 = 10×4=40
So
33×40 =1320$
1320+825=2145$
In standard form the answer will be if you go by (Ax+by=c )then I must say it's 3x-7y=9
