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11111nata11111 [884]
3 years ago
15

Geometry What’s the answer to 5x-6y= 33 and 2x+y = -14

Mathematics
1 answer:
V125BC [204]3 years ago
7 0

Answer:

X=-3 y=-8

Step-by-step explanation:

5x - 6y = 33 \\ y  =  - 14 - 2x \\

Put the second one in first

5x - 6( - 14 - 2x) = 33 \\ 5x + 84 + 12x = 33 \\ 17x = -  51 \\ x =  - 3

y =  - 14 - 2 \times ( - 3) \\ y =  - 8

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Small notebooks cost $3.50 and large notebooks cost $5.00. She needs to buy 31 notebooks, and she has $134 to spend. How many sm
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Let's assume

number of small notebooks =x

number of large notebooks =y

we are given

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x+y=31

now, we can solve for y

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we have

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so,

number of small notebooks is 14

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3 years ago
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The answer is c
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