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Hunter-Best [27]
4 years ago
7

Y= -8 y= -2x - 12 by substitution method

Mathematics
1 answer:
Alex787 [66]4 years ago
3 0
The answer is x=2;

y=-8
y=-2x-12

-8=-2x-12
-8+12=2x-12+12
4=2x
4÷2=2x÷2
2=x
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Answer:

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Step-by-step explanation:

To find : Convert 110 km/myr (kilometers per million years) to cm/yr (centimeters per year) ?

Solution :

Using metric conversions,

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So, 1 kilometer = 100,000 centimeter

and 1 million year = 1,000,000 year

1\ \text{km/myr} =\frac{100000}{1000000}\ \text{cm/yr}

1\ \text{km/myr} =0.1\ \text{cm/yr}

So, 110\ \text{km/myr} =110\times 0.1\ \text{cm/yr}

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Therefore, 110\ \text{km/myr} =11\ \text{cm/yr}

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