Step-by-step explanation:
For question 5
First and last statements are correct
For question 6
Third mathematical statement is correct
Answer:
-11r
Step-by-step explanation:
-r-10r ----> -r+-10r
add like terms
-11r
Answer:
x
Step-by-step explanation:
factor out both equations and then cancel any of the common factors. You should be left with 4x/4, which simplified is x
The answer to the question is B.
The startup equation for this would be 30 + 18h = 25 + 20h. Subtract 20h from both sides to get 30 - 2h = 25. Now, you should subtract 30 from both sides. When you do, you get -2h = -5. Divide each side by -2 to isolate the h. h = 2.5. A job that costs the same no matter which company is used is 2.5 (2 1/2) hours long.