The way your problem is set it should be simplified to this....4x + 55
4/6 = 14/21
When using cross product always multiply the left fractions numerator times the right side fractions denominator and the left side fractions denominator times the right side fractions numerator
4×21 = 6×14
84=84
They are equivalent because they both equal 84
The answer is 12.
Steps
If that number is x
(3+x)/(8+x)=3/4
"Cross multply"
4(3+x)=3(8+x)
12+4x=24+3x
x=12
To check: add 12 to 3 and 8. 3+12=15 and 8+12=20. 15/20=3/4
The answer is A because when you add the angles to get they equal 180. Then just solve for x.
The drawing isn't to scale
Answer:
b. The supplements of congruent angles are congruent
Explanation:
Note that
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is a supplement of
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and
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is a supplement of
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.
Since
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,
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because
the supplement of the congruent angles are congruent.