Answer:
y = 2.5x + 160
Step-by-step explanation:
b = 45 - (2.5)*(-46)
b = 45 + 160
b = 205
Move the -7 to the right, its sign will flip (do you know why?)
Negate both sides to change -x to x
-x = 16+7
-x = 23
x = -23
Answer:
-1/5
Step-by-step explanation:
42x=7[x-1]
42x=7x-7
42x-7x=-7
35x=-7
x=-1/5
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.
Hello,
The answer should be "8=m".
Reason:
Since it takes 8 minutes to run 1 mile put that first:
8
Since how 8min equal 1 mile you put equal
8=
Since how it could be more miles but m
8=m
If you need anymore help feel free to ask me!
Hope this helps!
~Nonportrit
