ANSWER:
Let r = no. of points Rea scores = 18 points
Let b = no. of points Ben scores
5b - 2 = r
5b - 2 = 18
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Answer:
Step-by-step explanation:
The general approach here is to choose a variable you want to eliminate, identify the coefficients of it, and use those to multiply the equations so adding the products will eliminate the variable.
Here, the coefficients of x are -1 and -3; the coefficients of y are 2 and 5. We often like to choose the set of coefficients that includes 1 or where the coefficients are related by an integer factor. These criteria suggest that we should use the coefficients -1 and -3. One of our multipliers must be the opposite of one of these coefficients. So, we choose for them to be -3 and +1.
That is, multiplying the first equation by -3 will make the x-coefficient be 3; multiplying the second equation by 1 will make the x-coefficient be -3. Adding these equations will then eliminate x terms.
(-3)(-x +2y = 12)
<u>+ </u><u>(1)</u><u>(-3x +5y =27)</u>
<u>gives</u> (3x -6y) +(-3x +5y) = -36 +27
which simplifies to the sum ...
0x -1y = -9
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Dividing by the coefficient of y, we find y = 9. Substituting into the first equation, we have ...
-x +2(9) = 12)
x = 18-12 = 6
The solution is (x, y) = (6, 9).
Answer:
The answer to your question is below
Step-by-step explanation:
2 3
Vertex (-4, -9) (-0.5, -3)
Max/min value Min of -9 Min of -3
Axis of symmetry x = -4 -0.5
Zeros -1 and -7 -3 and 2
Direction up up
y-intercept 6 -3
4 5 6
Vertex (-1, -2) (0, 0) (2, 1)
Max/min value Max = -2 Min = 0 Min = 1
Axis of symmetry x = -1 x = 0 x = 2
Zeros None 0 None
Direction down up up
y-intercept -4 0 3
Answer:
49.7
Step-by-step explanation:
you just add them. thats perimeter
Answer: d=-3
Step-by-step explanation: -7-8d=17
-8d=17+7
-8d=24
-8d/-8=24/-8
D=-3