Answer:
This was a hard one but x
=
8
±
5
i
Hope this helps :)
Step-by-step explanation:
Answer:
59 coins
Step-by-step explanation:
- Add 16 gold coins and 33 silver coins
- Multiply by 6
For this case we have the following variables:
x: number of hours that it takes Mr. David to complete a job working alone.
y: number of hours it takes Mr. Ludwing to complete a job working alone.
k: number of hours it takes for both of them to do a job working together.
We now write the equation that models the problem.
To do this, we must add the work rate per hour of each and equal to the rate of work per hour of both.
We have then:
Answer:
The algebraic expression that models the problem is:
Question:
Consider the expression
When using the inspection method the number you would add to (and subtract from) the constant term of the numerator so the polynomial in the numerator will have (x + 3) as a factor is?
Answer:
The constant to add is 4
Step-by-step explanation:
Given
First, we need to get an expression that has x + 3 has its factor.
Represent this expression with:
Expand
Group like terms
Compare the above expression to:
However, we only consider solving for k
Subtract 3 from both sides
Substitute -2 for k in
So, the expression that has a factor of x + 3 is
To get the constant term to add/subtract, we have:
Open brackets
Collect Like Terms