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wariber [46]
3 years ago
7

Solve for these letters X Y Z

Mathematics
1 answer:
tester [92]3 years ago
7 0
Z = 140
X = 40
Y = 40
Explanation:
Z and the angle given (140 degrees) are vertical angles, and are therefore congruent
We know that x and y are vertical angles, so they are also congruent to each other
You know that together, the angles have to add up to 360
140 + 140 + x + y = 360
Another way of putting it:
360-280 = 80
Now, we have to divide by two since we need to find x AND y
80/2 = 40
Therefore, your answers for x and y are 40
To double check, you can add up the angles and see if they equal 360
140 + 140 + 40 + 40
280 + 80 = 360
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Answer:

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Total world consumption of iron was approximately 900 million tons in 1993. If consumption had increased by 2.5% each year and t
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Step-by-step explanation:

We can model the annual consumption of iron by the equation

c = 900 million tons x 1.025^n, where

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This equation simplifies to

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