Assuming I did my math right, 24.
Add 1/3 and 4/7
(1/3)+(4/7)= (19/27)
Make a proportion:
(19/21)*(x/252)
x = 228
Subtract 228 from 252
252 - 228 = 24
Red Cards = 10
Other Cards (Black + Blue) = 10+20 = 30
So, the ratio would be: 10/30 = 1/3
So, your final answer is 1/3
Hope this helps!
1. Find a common denominator
1/4 2/3 both have 12 in common
1/4=3/12
2/3=8/12
2. Add both
3/12+8/12=11/12
3. Subtract
12/12-11/12=1/12
1/12 of the students have neither brown nor blue eyes
I hope I helped! :D
Answer:
Step-by-step explanation:
If you want to factor this, you have to use the quadratic formula to do so.
For us, it looks like this:
which simplifies to
Since it breaks every mathematical rule to have a negative number under an even index radical, we have to deal with that using the imaginary "i". You should know at this point that
so we will do a rewrite on that equation above:
which simplifies further to
This is the answer but we can separate it into its proper standard form which is
and
The tempurature at midnight was 19 degrees Fahrenheit.