Two numbers are randomly selected on a number line numbered from 1 to 9. Match each scenario to its probability.
1 answer:
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Answer:
22 units
Step-by-step explanation:
Known Quantities:
- AB = CD and AC = BD
Calculations:
- AB = 8
- AC = 3
- CD = 8
- BD = 3
Final Calculations:
- perimeter = 2 x (3+8)
- perimeter = 22
Answer:
286 students attended
148 non students attended
Step-by-step explanation:
Given
Solving (a): Number of students
Represent students with S and non students with N
So:
--- (1)
--- (2)
Make N the subject of formula in (1)
Substitute 434 - S for N in (2)
Open Bracket
Collect Like Terms
Divide through by -2
<em>Hence; 286 students attended</em>
Solving (b):
Recall that
<em>148 non students attended</em>