3/10 = 30/100 after multiplying top and bottom by 10
so we have 30/100 + 62/100 = (30+62)/100 = 92/100
Reduce this fraction
92/100 = (23*4)/(25*4) = 23/25
Therefore, 3/10+62/100 = 23/25
Answer:
7
Step-by-step explanation:
9x+18=2x+19 (corresponding angle)
or, 9x-2x=19-18
or, 7x=1
or, x= 7
Answer:
its D
Step-by-step explanation:
Answer:
The second one; l-5l = -5
Step-by-step explanation:
When finding the absolute value, a negative number will always be positive. However, in that answer -5 was not turned positive.
Step-by-step explanation:
(n + 7)² – n²
n² + 14n + 49 – n²
14n + 49
7 (2n + 7)
7 is a factor, so for any natural n, (n + 7)² – n² is a multiple of 7.
