If x is the number of calls he makes and y is the number of hours he works;
the total amount he charges is termed as C
C = (50 * x) + (25 * y )
C = 50x + 25y
25y = C - 50x
the 2 variables are not proportional.
For 2 variables to be proportional, they need to be in the form y = mx
Where m is a constant. When x increases, y too should increase by the same amount.
The question given x and y are not proportional. As the number of hours he works and number of calls he charges are not dependent on each other. Therefore the 2 variables are not proportional.
You find the surface area by finding the area of both trapezoids, then adding the area of the rectangles.
You find the volume by adding the base area, length of the base, dividing it by 2, multiplying it by the base height, and multiplying it by the base length. The formula is (a + b)/2 x h x l
The solution is (-4,4)
Step-by-step explanation:
Given equations are:
In linear combination method, we have to make coefficients of any one variable opposites by multiplying with an integer
So multiplying 2nd equation by -2
Adding Equation 1 and Equation 3:
Dividing both sides by 3
Putting y=-4 in equation 1
Dividing both sides by 4
Hence,
The solution is (-4,4)
Keywords: Linear combination, linear equations
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She’s incorrect I’m pretty sure u divide 20 and 60.
This is asking which one has the most factors. Lets list them out:
75: 1,3,5,15,25,75
60: 1,2,3,4,5,6,10,12,15,20,30,60
Obviously 60 has more factors.
The answer is 60
Hope this helps!
