The quotient for the question is: -343
Joey's average speed is 1.5 hours for 1 km
By the additive property of equality, the equations John wrote are equivalent.
<h3>Additive property of equality: Determining equivalent equations</h3>
From the question, we are to determine if the equations John wrote are equivalent.
From the given information,
John wrote that
5 + 5 = 10
Then,
He added n to both sides of the equation to get
5 + 5 + n = 10 + n
From the Additive property of equality, we have that
"<em>If we add or subtract the same number to both sides of an equation, the sides remain equal</em>."
Since, John added the same number, n, to both sides of the equation, the equations John wrote are equivalent.
Learn more on Determining equivalent equations here: brainly.com/question/21765596
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Answer: 53 degrees
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Work Shown:
Add up the two arc measures and divide the result by 2
Angle CED = ((arc AB) + (arc CD))/2
Angle CED = ((90) + (16))/2
Angle CED = (106)/2
Angle CED = 53
