Answer:
The time it takes them to grade the essays if they work together is 1.857 hours
Step-by-step explanation:
- Let t1 is time taken by Professor J = 3 hours
- Let t2 is time taken by the assistant = 5 hours
- Let tb is the time taken by both
The formula for “Work” Problems that involve two persons is
<=> 
<=> 
<=> tb = 
The time it takes them to grade the essays if they work together is 1.857 hours
Answer:
see attached
Step-by-step explanation:
graph y = -3/2x - 2
x Intercept: 0 = -3/2x -2
3/2x = -2
x = <u>-2 (2)</u>
3
x = -4/3
(-4/3, 0)
y intercept: (0, -2)
Answer:Objective: Solve systems of equations with three variables using addition/elimination.
Solving systems of equations with 3 variables is very similar to how we solve systems with two variables. When we had two variables we reduced the system down
to one with only one variable (by substitution or addition). With three variables
we will reduce the system down to one with two variables (usually by addition),
which we can then solve by either addition or substitution.
To reduce from three variables down to two it is very important to keep the work
organized. We will use addition with two equations to eliminate one variable.
This new equation we will call (A). Then we will use a different pair of equations
and use addition to eliminate the same variable. This second new equation we
will call (B). Once we have done this we will have two equations (A) and (B)
with the same two variables that we can solve u
Step-by-step explanation:
Answer:
The answer is the red square, 2* pi* r
Step-by-step explanation:
In order to find the circumference* of a circle, you need the radius to be multiplied with pi and 2
Answer: Hope this helps.
Step-by-step explanation:
