Solve for x over the real numbers: by completing the square:
5 x^2 - 30 x = 5
Divide both sides by 5:
x^2 - 6 x = 1
Add 9 to both sides:
x^2 - 6 x + 9 = 10
Write the left hand side as a square:
(x - 3)^2 = 10
Take the square root of both sides:
x - 3 = sqrt(10) or x - 3 = -sqrt(10)
Add 3 to both sides:
x = 3 + sqrt(10) or x - 3 = -sqrt(10)
Add 3 to both sides:
Answer: | x = 3 + sqrt(10) or x = 3 - sqrt(10)
Given:
days present = 216 days
percentage of presence = 60%
Find the total number of days the school was opened.
216 days is the part of a whole. 60% is the percentage of the part to the whole.
To get the whole, we need to divide the part by its percentage
216 ÷ 60% = 360 days
The school was opened for 360 days.
93/97
Decimal Answer : 0.958763
6+3=9 because if you put 9-6=3 and they are fact families