Answer:
500 items
Step-by-step explanation:
plug the $320000 into C
320000=500x+70000
1. substract 70000 from both sides (always get rid of adding/substracting first)
320000=500x+70000
<u>-70000 -70000</u>
250000=500x
2. divide both sides by 500 (you divide both sides by whatever number is in front of x so you can isolate it)
<u>250000/500=500x/500</u>
500=x
there you go :D good luck and have a good day
Answer:
x=14 , y = 21
Step-by-step explanation:
y=x-7...............1
5x+2y=7......2
reset eqn .....2
2y=-5x+7
so; y=-x-7 ×5
2y=-5x+7 ×1
5y = -5x -35
2y = -5x +7
5y-2y = -5 + 5 -35-7
<u>3y</u> = - <u>42</u>
3 3
y = 14
sub y=14 into eqn ...........1
y = -x -7
14 = - x -7
14 +7 = - x
-21 = x
x = 14 , y =-21
Answer:
Step-by-step explanation:
There is no solution, because the lines do not intersect.