Answer:
1
Step-by-step explanation:
x2 - x2 = 0
+1 = 1
<span>the graph that represents the compound inequality –3
< n < 1 is the straight line from -3 to 1 in which there is a hollow
circle in the -3 point and in the 1 point. This is because < means that the
possible values of n is only greater than -3 exluding -3 and less than -1
excluding -1</span>
Hi there!
Here is the step by step solving :
-19 = 5(x + 9)
Distribute the 5 to the entire parentheses
5 × x = 5x
5 × 9 = 45
-19 = 5x + 45
Subtract 45 from each side of the equation
-64 = 5x
Divide each side of the equation by 5
-64/5 = x
So your answer is : A. x = -64/5
There you go! I really hope this helped, if there's aything just let me know! :)
Answer:
40/13 hours
Step-by-step explanation:
Let 1 represent the room being painted.
1/5 would represent 1/5 of a room painted in 1 hour.
1/8 would represent 1/8 of a room being painted in 1 hour
But they are are working together so
(1/5)x + (1/8)x = 1
The lowest common denominator is 5 * 8 = 40
[(1/5)x * 40 + (1/8)x * 40] = 1
8x + 5x = 40
13x = 40
x = 40/13
x = 3.077 hours
But you want a fraction as your answer so it is 3 1/13 or 40/13
You should notice that 3.077 is smaller than the lowest amount of time both of them use. That always happens with these questions.
You have to get change 1/2 into a fraction with a common denominator. 1/2 turns into 4/8. Now you have to do 4/8 - 1/8 which is now 3/8
