Answer:
Step-by-step explanation:
5x/8 =7/2
10x=56
x=28/5
x=5.6
Let T represent the fifth test score. The average is the sum of scores divided by their number.
... 82 = (83 +75 +93 +67 +T)/5
... 410 = 318 +T . . . . . . . multiply by 5
... 92 = T . . . . . . . . . . . . subtract 318
The fifth score was 92.
_____
One of the ways I like to work problems like these is to add the differences from the mean. Those are ...
1, -7, 11, -15
so their sum is -10.
The final score must be 10 above the mean in order for this total to be zero. 10 above the mean is 92.
Answer:
Yes they are equivalent, both equations equals 
Step-by-step explanation:
We first simplify Olivia's equation

1. we combine like terms in the equation: 



Now we simplify Isabella's

1. we do distributive property



If you have any quesitons feel free to ask
Answer:
first term of sequence=4
To get the next term you would:add the number
This means ther common ratio is :4
the 10th version of the iPhone would be = 2048
LydyYgzt tu hi oh hell yes