Answer:
a
Step-by-step explanation:
because it is
Answer:
13
Step-by-step explanation:
Mark me brainliest plz
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:
55- 21=34
Step-by-step explanation:
Answer:
6a - 9
Step-by-step explanation:
First off, let's put all of the identical variables besides each other, to make this equation easier.
-5ab - (-5ab) + 6a - 8 - 1
Then, we simply solve.
-5ab + 5ab = 0
6a = 6a
-8 - 1 = -9
So you're left with 6a - 9 as your answer.
Hope that helps!