Answer:
141.42136 in^2
Step-by-step explanation:
AL = aa2 + 4h2 = 10·102 + 4·52
≈141.42136
8 students were in each classroom. 24/3 is 8.
E(8) = 2*8 = 16. Should be no tricks.
3/4n - 18 = 1/4n - 14
We need to isolate "n"
So, add 18 to both sides.
3/4n = 1/4n - 14 - 18
Then, subtract 1/4n from both sides.
3/4n - 1/4n = -14 - 18
*Note : Since "n" has the same denominator (bottom number in a fraction), then we simply need to look at the top numbers (numerators) and simplify those.
Simplify.
2/4n = -32
Then, multiply both sides by 4 so that we get rid of fractions.
4 · 2/4n = -32 · 4
Simplify.
2n = -128
Now, divide both sides by 2.
2 ÷ 2n = -128 ÷ 2
Simplify.
n = -64
~Hope I helped!~
:)