Eric took 20 hours to do the job alone.
<u>Step-by-step explanation</u>:
<u>Given </u>:
- Total work = 75 packages
- Joe took 5 hours to complete the total work.
The amount of work Joe alone can do per hour = 75/5 = 15 packages.
The amount of work Joe and Eric together do per hour = 75/4 = 18.75
The amount of work Eric alone can do per hour = 18.75 - 15 = 3.75
The time Eric took to complete the entire work = 75 / 3.75 = 20 hours.
Answer:
m=3
Step-by-step explanation:
-4m+7= -5
Combine like terms.Put +7 on other side.
-4m= -5-7
-4m= -12
It's -4 times m = -12 right ?
So the answer is m=3 because m= -12/-4
Answer:
To find the mean , median and mode of the students.
Step-by-step explanation:
The students choose from the three definitions of average to find the mean, median or mode of the students’ height in the school.
Students develop a strategy, collect and record data, and analyse data to answer this question.
The key concepts are
Consolidating the terms mean, median and mode.
The students should find the median of the height for the school if they have collected the median result of each grade.
Answer:
164 ft squared
Step-by-step explanation:
X can be anything you want it to be.
I would stick with something easy for x.
y=4(x)^2
y=4(2)^2
y=4(4)
y= 16
