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ch4aika [34]
2 years ago
13

Solve each system by elimination. -2x + 8y = -30 9x - 16y = 15

Mathematics
2 answers:
galina1969 [7]2 years ago
5 0

Answer: −0.147540984 or 1.911885246

tresset_1 [31]2 years ago
4 0

Answer:

(-9, -6)

Step-by-step explanation:

-2x+8y=-30

9x-16y=15

Start by multiplying the first equation by 2:

-4x+16y=-60

Now, add the two equations to eliminate y:

9x-4x=15-60

    5x=-45

Divide both sides by 5

x=-9

Plug -9 in for x to solve for y:

-2(-9)+8y=-30

18+8y=-30

Subtract 18 from both sides

8y=-48

Divide both sides by 8

y=-6

(x,y)=(-9,-6)

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3 years ago
4. (03.03 HC)
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A. yes, the data represents a function because u have no repeating x values. A function cannot have repeating x values...they can have repeating y values, just not the x ones

Step-by-step explanation:

B. table : (8,8)(12,12)(14,16)(16,16)

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Therefore, the relation has a greater value when x = 8 <==

C. f(x) = 8x - 5...when f(x) = 19

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3 years ago
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In this case we can model a Total cost function C(x) for for x number of puppets as below

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The total cost to make 50 puppets=$1025

3 0
3 years ago
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