Answer:
3/7
Step-by-step explanation:
ofc theres 70 students all together, the 3 represents 30 eighth-graders and the 7 is the 70 students all together, 3+4=7 blah blah blah :)
<span>1. </span><span>Original ratio of the bike and
scooter is equals to :
=> 3 : 4, where 3 is the bike and 4 is the scooter
=> 48 bikes
=> original order = 64 scooter
=> 64 / 4 = 16
however, bike is more popular than scooter, so they changed it into new ratio:
=> 5 : 2 , where 5 is equals to bikes and 2 is equals to scooter.
=> 5 x 16 = 80 bikes
=> 2 x 16 = 32 scooter.</span>
Step-by-step explanation:
3x+6=3
-6 -6
3x =-3
÷3 ÷3
x= -1
Answer:
see explanation
Step-by-step explanation:
In 13 - 17
Consider the factors of the constant term which sum to give the coefficient of the x- term
13
x² - x - 42 = (x - 7)(x + 6)
15
x² + x - 6 = (x + 3)(x - 2)
17
x² - 27x + 50 = (x - 25)(x - 2)
19
r² - 25 ← is a difference of squares and factors in general as
a² - b² = (a - b)(a + b) , thus
r² - 25
= r² - 5² = (r - 5)(r + 5)
Answer: The simplified form is 
Step-by-step explanation:
Since we have given that
As we know the "Exponential law":
So, it becomes
Now, at last it becomes,
Hence, the simplified form is
