Given:
A student used the proportion to find 5% of 26.
To find:
The student's mistake.
Solution:
Let 5% of 26 be n. Then,
On dividing both sides by 26, we get
So, the proportion used by the student was incorrect. The denominators of the proportion are interchanged.
First change the fraction to a decimal by multiplying both sides by 2. 49 times is 98. Therefore, you have to put it as 0.98. Now you put the 686 in place of the 0. The final answer is 696.98.
Answer:
Opposite Angles Theorem
Step-by-step explanation:
All opposite angles are congruent, meaning that two angles created by intersecting lines that oppose eachother are equal in size. The theorem goes by different names, so I don't know exactly what your teacher is asking for, but I hope I could help.
Answer: 2n - 4 is the simplest answer
Step-by-step explanation:
(n + 8) + (n - 12)
8 - 12 = -4
n + n = 2n
2n - 4
Answer:
10
Step-by-step explanation:
((2 + 2 + 4) + 2) x 2 / 2 = (10 x 2) / 2 = 10