Answer:
216 square feet
Step-by-step explanation:
Cement patio outside of lawn
(36*13)-(28*9)
468-252
216
Let's solve the sine equation.
1. Express sine function in the left side of equation:
.
2. Use the genereal solution to get the solution of your equation:
, where .
3. Find :
.
4. Substitute part 3 into part 2 and express x:
, where
, where .
5. Solutions of your equation are:
, where .
Answer:
A: 9/40
Step-by-step explanation:
Hopefully this helps!
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!