The hotel is $250 plus $25 per person so the equation would be
y= 25x + 250
(Y is the total cost and x is the number of people)
the restaurant is $100 plus $40 per person so the equation would be
y = 40x + 100
What we want to know is which x value would make the y values equal to each other. So you can just replace the "y" in one equation with the other equation:
25x + 250 = 40x + 100
and then solve...
1. subtract 100 from both sides
25x + 150 = 40x
2. subtract 25x from both sides
150 = 15 x
3. divide both sides by 15
10 = x
you can check by plugging 10 into the original equations
25(10) + 250
250 + 250 = 500
and
40(10) + 100
400 + 100 = 500
they both cost $500 when you invite 10 people
Answer:
Step-by-step explanation:
Multiply 100*$15 to find the loss. (1500)
Multiply 100*$21.75 to find what was made. (2175)
Subtract 2175-1500
Total=$675
Cindy needs to buy 8 packs of invitations.
Answer:
Feed 1, Soybean meal required = 
Feed 2, Corn meal required = 
Step-by-step explanation:
Total feed is <em>1 ton</em> i.e. <em>2000 lbs</em>.
Let <em>x</em> be the amount of Feed 1 required.
Feed 1 has 
of protein.
Then, amount of Feed 2 required = 
Feed 2 has 
of protein.
As per question, total protein required is 
of 2000 lbs
.
Adding (1) and (2) and putting it equal to total protein required.
Feed 1 required = 
Feed 2 required = 
4)
ordered pairs : (-5,4)(-3,2)(2,6)(-3,-5) it is not a function because it repeats x’s
5)
ordered pairs : (4,5)(2,5)(1,-3)(-2,-2) it is a function because it is NOT repeating x’s
6)
(2,6)(6,8)(6,10)(8,12) it is not a function because it repeats x’s
