Elimination because u could multiply the second equation by -3 which would cancel the x and allow you to solve for y and then everntually x but yea elimination is the best method
C=Candy Bar(s)
D=Drink(s)
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60C+110D=265
120C+90D=270
-------------------
Therefore:
60C=265-110D
Therefore:
2(60C)+90D=270
2(265-110D)+90D=270
530-220D+90D=270
530-270=220D-90D
260=130D
D=260/130
D=2
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If D=2,
60C=265-110(2)
60C=265-220
60C=45
C=45/60
C=3/4
C=0.75
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<em>*Candy bars sell for $0.75 whilst drinks sell for $2.00.</em>
<u>ANSWER: </u>
The vertex of given equation is (6, 32).
<u>SOLUTION:
</u>
Given, quadratic equation is
Above equation is a parabola and we need to find the vertex of that parabola. We know that, general form of the parabola is
Where, (h, k) is the vertex.
So, let us convert the given equation in parabolic equation.
Now, by comparing above equation with general form,
h = 6, k = 32 and a = -1.
Hence, the vertex of given equation is (6, 32).
Answer:
<u>k=35</u> is the right answer.
Answer:
B. (2a +3b)(4a -c)
Step-by-step explanation:
Group the terms pairwise, then factor each pair.
... (8a² -2ac) +(12ab -3bc)
2a is a common factor in the first pair of terms; 3b is a common factor in the second pair of terms. We can factor those out.
... = 2a(4a -c) +3b(4a -c)
Then we see that (4a-c) is a common factor in the result. We can factor that out.
... = (2a +3b)(4a -c) . . . . matches selection B