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marysya [2.9K]
2 years ago
9

Solve both by elimination can someone help? 2x-5y=-9 , 4x+5y=12 3x-2y=12 , 7x-5y=17

Mathematics
1 answer:
lyudmila [28]2 years ago
8 0

Answer:

x=1/2, y=2;    

Step-by-step explanation:

First pair:

2x-5y =-9

4x+5y=12

Add them together:

6x=3

x = 1/2

2(1/2) - 5y =-9

1-5y = -9

1+9=5y

y=10/5=2

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Step-by-step explanation:

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3 years ago
*Find 6 5/8% of $1,480.90. Round to the nearest cent.
jeka94

9514 1404 393

Answer:

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Step-by-step explanation:

If your calculator doesn't work with mixed numbers, you must first convert 6 5/8% to a decimal fraction.

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6 0
3 years ago
A sandbox has a volume of 330 cubic feet of sand. If the sandbox is 3 feet tall, and 10 feet wide, what is the length of the san
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Answer:

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Step-by-step explanation:

Have a great rest of your day
#TheWizzer

6 0
2 years ago
3.
Nana76 [90]

Answer:

no I do not agree, Because it doesn't make since

6 0
2 years ago
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