Answer:
She needs a grade of 71 on her next text.
Step-by-step explanation:
Mean of a data-set:
The mean of a data-set is the sum of all values in the data-set divided by the number of values.
Tammy has scored 82, 78, and 93 on her previous three tests.
Thus, her grades are 82, 78, 93 and x, in which x is her grade in the fourth test.
There are 4 tests.
What score does she need on her next test so that her average (mean) is 81?
We have to find x when the mean is 81. So




She needs a grade of 71 on her next text.
Answer:
Whats your question?
Step-by-step explanation:
Could just be used as a variable.
87.5 you see you need to multiply .25 by 35.If there are zeros at the end of a decimel
you can remove them good luck
I only see the store question but the answer is correct, 600