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WITCHER [35]
3 years ago
10

3x-2y=12;2x+2y=-2 what variable will eliminate in the system?

Mathematics
1 answer:
KatRina [158]3 years ago
4 0

Answer:

the y- term

Step-by-step explanation:

3x - 2y = 12

2x + 2y = - 2

adding the 2 equations term by term will eliminate y

5x + 0 = 10

5x = 10 , etc

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If the yuan is worth 6.58 to a US$, what would the price to a US$ be if the yuan changed to 6.25
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The correct question is

The local currency it gives is a total of 275 Yuan. <span>If the yuan is worth 6.58 to a US$, what would the price to a US$ be if the yuan changed to 6.25
The </span><span>options are A)$2.21 B)$2.50 C)$13.31 D)$41.79 E)$44.00

we know that 

</span><span>at the current exchange rate give (6.58)
</span>if 1 usd-----------------> 6.58 yuan
X usd------------------> 275 yuan
X=275/6.58------------> X=41.79 usd

at the current exchange rate give (6.25)
if 1 usd-----------------> 6.25 yuan
X usd------------------> 275 yuan
X=275/6.25------------> X=44 usd

so

the change in price in US$ would be [44-41.79]=US$2.21

the answer is the option 
A)$2.21


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Step-by-step explanation:

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