Answer:
8 people in the original group.
Step-by-step explanation:
Let x be the number of people who were originally present for the dinner that cost $160. Their average cost per person would be:
$160/x
If 2 more people join, there are x+2 people. Ignoring the awkward situation that they apparently did not order any additional food, they agree to share the cost of the dinner. The average cost is now:
$160/(x+2)
We are told that this new average is now $4 less per person.
$160/(x+2) = ($160/x) - $4
$160 = (($160/x) - $4)(x+2)
x = 8 people
Answer: 2
Step-by-step explanation:
Sub in 2 to both equations
As you see we see that both sides result into 3 (which would be the y) meaning they both intersect when x=2 and y=3
Answer:
bbbbbbbbbbbbbbbbbbbbbbbbb
Answer:
120%
Step-by-step explanation:
...............
Answer:
It would be
a plus 4 divided by 7
Step-by-step explanation: