the answer is (-21/32, 23/32)
2/3 of an hour= 40 minutes
3/4 of 40= 30 minutes
40- 30= 10
So, it took Bethany 10 more minutes to complete her science homework than her math homework.
Answer:
6 + 3
or 6 - 3
Step-by-step explanation:
x^2 - 12x + 36 = 90
x^2 - 12x - 54 = 0
x = 
a = 1, b= -12, c= -54
6 + 3
or 6 - 3