A container holds 13 pencils, 5 black pens, and 3 blue pens. What is the ratio, in fraction form, of pens to all writing tools?
1 answer:
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ANSWER
The sum of m∠DEA and m∠AEB is 180°.
Reason: The sum of angles on a straight line is always 180°.
Group like terms to get,
Simplify, and get,
Divide both sides by 10 to get,
We substitute this value to get the required angles.
The sum of m∠DEA and m∠AEB is 180°.
Reason: The sum of angles on a straight line is always 180°.
Group like terms to get,
Simplify, and get,
Divide both sides by 10 to get,
We substitute this value to get the required angles.