An English teacher reviewed 2 3 of an essay in 1 4 of an hour. At this rate, how many essays can she review in 1 hour? Pls help me I've spent like an hour on this now

The English teacher can review 2 essays in one hour

Step-by-step explanation: ok so if she reviewed 2/3 in 1/4 of an hour then she only needs to do 1/3 which is 1/8 of an hour so she can do another 1/3 of another essay for 1/8 of an hour and both 1/3rds would get you another 1/4 of an hour so that's 2/4 of an hour gone she can review another 2/3rds of an essay and another 2/3rds and your answer is 6/3 and that is 2.

I don't know if that makes sense it sounded better in my head, hope this helps!

900 degrees

step-by-step explanation:

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15