Answer:
Step-by-step explanation:
20x - 44z = 84
528x + 44z = 1012
548x = 1096
x= 2
48(2) + 4z = 92
96 + 4z = 92
4z = -4
z = -1
(2, -1)
Answer:
49
Step-by-step explanation:
Let there be x students in the class.
Since, donation by each student is equal to the number of students in the class.
So,
Total donations = 2401
Thus, the number of students in the class = 49
Answer: True
The control chart is graph,that is used to study how a process changes over time with date plotted in time order.
Control charts are a valuable tool for monitoring process performance. However, you have to be able to interpret the control chart for it to be of any value to you.
A control chart can use to measure schedule Trends.
Step-by-step explanation: in the situation where schedule changes control chart can be use to monitor the process.
The control chart can also serve as guide that helps to notify in case of changes.
Answer:
a battery costs £0.43
Step-by-step explanation:
<u>Set up an equation</u>
11b+b+4.84=10
S<u>ubtract 4.84 from both sides</u>
12b+4.84=10
-4.84=-4.84
12b=5.16
<u>Divide 12 on both sides</u>
b=5.16/12
b=0.43
