Answer:
- 16
Step-by-step explanation:
This is very tricky. Be careful how you do it.
The total of the six numbers is 6*41 = 246
The total of five numbers = 5*46 = 230
What have you you removed to make the number average go up with a smaller sample? The answer is a negative.
230 - 246 = - 16
Answer:
x=2 and y= -1
Step-by-step explanation:
substitute x value in equation 2
2(5y+7)+4y=0
10y+14+4y=0
14y = -14
y= -1
here,
x= 5(-1)+7
x= -5+7
x=2
24w+6c=$23.40
5w+2c=$6.60
So you have to find c (chips) first. You have to make the number of chips in both equations cancel each other.
-3(5w+2c)=-3($6.60)
-15w-6c=$-19.80
Then subtract to get one formula
24w + 6c = $23.40
-15w - 6c = $-19.80
9w = $3.60
w=$.40
To check your answer, find how much one bag of chips costs:
5($.40) + 2c = $6.60
$2.00 + 2c = $6.60
2c = $4.60
c=$2.30
Plug your value for one water and one bag of chips into the formula:
5($.40) + 2($2.30)
$2.00 + $4.60
=$6.60
Then plug your values into the original problem:
24($.40) + 6($2.30)
$9.60 + $13.80
=$23.40
Answer:
i need help to with this Qestion to
Step-by-step explanation:
When working with two equations (aka a system of equations), the solution is (or the solutions are) where the graphs intersect.
If they intersect once, there's one solution.
If they intersect twice, there are two solutions.
The solution IS the point(s) of intersection.
Every point on a line is also a solution to the equation that makes the line. Since that interseciton point is on both lines, it's a solution for both lines.
