Answer:
x = -1/3
Step-by-step explanation:
x = [-6 +- squareRoot(36-4x9)] / 2 times (-6)
= -6/18 = -1/3
x-(-1/3) = 0 ---> x = -1/3
Answer:
290.6 backpacks per year
Step-by-step explanation:
The average of 5 numbers is 1/5 of their sum:
average = (278 +310 +320 +242 +303)/5 = 290.6
The average number of backpacks given out in the last 5 years is 290.6, about 291.
Answer: 27.5 pages per hour
Step-by-step explanation:
Well, first you make the 12 minutes into an hour (times by 5), then times the pages she read (5.5) by 5, which is 27.5, so she reads 27.5 pages per hour, you can also use 27 and a half pages per hour.
<span>the change in the amount of water in the pitcher is</span>5/8 cup