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:
x=0
y=4
Step-by-step explanation:
x=8-2y
3y=-x+12
first make it
ax ( + or - ) by = c
x+2y=8
x+3y=12
now subtract the equations
x+2y=8
- (x+3y=12)
-----------------
-1y=-4
y=4
x+2(4)=8
x+8=8
x=0
itt is d because
dat is not the wrong anser lol
30/-6 equals 5. You’re welcome
Can the 2/5 invite a fraction and add them