For this question, you would want to set up a system of equations.
Let x = Dog Food
Let y = Cat Food
5x+2y=20
x+4y=13
The next step is to eliminate a variable or do substitution. I personally find elimination easier. To eliminate the y, multiply the top equation by -2.
-10x-4y=-40
x+4y=13
The y's will cancel and you are left with:
-9x=-27
Divide by -9 on both sides and you get x=3. Now you want to take 3 and substitute it back into one of the original equations.
3+4y=13
Solve for y
4y=10
y=2.5
Plug both values into the top equation to check the values.
5(3)+2(2.5)=20
15+5=20
20=20
The answers are correct. Dog food is 3 dollars or euros and cat food is 2.50 euros.
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The ratio of the two point is the coordinate at the plane where the two point are divided at the fixed amount of length. The<em> y</em> value of the point that is 3/4 distance from point E to point F is -1.5. thus the option 4 is the correct option.
Given information-
The coordinates of the point E is (2,-3).
the coordinates of the point F is (-2,-1).
As the 3/4 the distance from the point E is the point F is means the points which divides the line EF in the ratio of 3/1.
<h3>Ratio of two point</h3>
The ratio of the two point is the coordinate at the plane where the two point are divided at the fixed amount of length.
Suppose the ratio are the ratio of the two points and . Then the coordinate of the point which divide the line at this ratio can be given as,
Put the values,
Thus the<em> y</em> value of the point that is 3/4 distance from point E to point F is -1.5. thus the option 4 is the correct option.
Learn more about the ratio of the two points here;
brainly.com/question/7102971
The first thing you should know is that to represent a parabola you need at least three points, which are given by the enunciation of the problem. Therefore, the function that best represents the parabola is: y = -x^2 - 2x + 3
Graphic attachment.
Answer:
190
Step-by-step explanation:
First you have to add 94 +94 and then 5+5 and then you add both totals and your answer is 190.