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Inessa05 [86]
3 years ago
11

Please help me!

Mathematics
1 answer:
SIZIF [17.4K]3 years ago
5 0
<span>4x + 3y = 12
-2x - 5y = 1
multiply bottom by 2
</span><span>4x + 3y = 12
-4x - 10y = 2
add both equations
-7y = 14
divide by 7
y = -2
plug into first equation
4x + 3(-2) = 12
solve for x
4x = 18
x = 4.5

</span>
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1. 25.01 +36.5+ 200.35 =<br>(a) 81.545<br>(b) 228.91<br>(c) 229.01<br>(d) 261.41<br>(e) 261.86​
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2 5 . 0 1

+ 3 6 . 5

2 0 0 . 3 5

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2 6 1 . 8 6

= 261.86

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