Assuming the highest score for a test is 100.
Highest possible total scores for 4 tests = 71 + 78 + 81 + 100 = 330
Highest possible average score for 4 tests = 330 ÷ 4 = 82.5
Answer: 82.5
Answer:
A is not a function
Step-by-step explanation:
In table A, the x value of 4 goes to two different y values
To be a function each x value can only go to one y value
A is not a function
Answer:
A pound of potato costs $3.10
A dozen egg costs $5.5
A wheel of cheese costs $6.25
Step-by-step explanation:
Represent
- a dozen egg with D
- a wheel of cheese with W
- a pound of potato with P
For Adam:
---- (1)
For Barry:
---- (2)
For Charles:
---- (3)
Make D the subject in (2)

Substitute 36.50 - 10P for D in (3)



Collect Like Terms



Solve for P


Substitute 3.1 for P in 



Substitute 3.1 for P and 5.5 for D in 


Solve for W


The range of his scores is basically :
Subtract the highest score and the lowest score, and you find the range :
98 - 75 = 23
The range is 23..
:)
What does this mean?
it means times them all togather.