Answer:
The number of machines to complete job in 2 hours is 6.
Step-by-step explanation:
Using the relation of the rate of each one machine and knowing that adding up both rates.
Rate R = 
'x' is the job
Rate S = 
'x' is the job
So, using the equation of rates
Rate total is going to be a job in 2 hours so = 
<em>adding up</em>
<em>factoring the x</em>
<em>simplifying</em>
x= 
x= 6
Answer:
5(c) - 6 = 4 - 3(c) is wrong
Step-by-step explanation:
The other problems are correct and equal. This one is wrong because when you do the equations you get 19 = -11 which is clearly not equal. You would need to change the equation to make it equal. So it would be:
5(c) - 6 = 4 - -3(c) so now it is 19 = 19.
So you would change 5(c) - 6 = 4 - 3(c) into 5(c) - 6 = 4 - -3(c)
<em>I hope this helps :)</em>
Answer:
x>-4
Step-by-step explanation:
-8x<32 - First isolate the x by dividing both sides by -8
-8x/-8<32/-8
x>-4
<h2><u>
When you divide or multiply by a negative the inequality sign flips.</u></h2>
<u></u>
1) graphs y = -9x + 12 and y = 1/3x - 12 are not coincident.
2) The graphs are not parallel, because the angular coefficients are not equal
3) The condition of perpendicularity:
, where 
- not perpendicular
Answer:
1836
Step-by-step explanation:
