Answer:
y = +6
Step-by-step explanation:
-y + 6 = 0
Subtract 6 from both sides;
-y = -6
Divide both sides by -1
y = 6
Answer:
The numbers 180 and 0 would make the average 90
Step-by-step explanation:
we know that
To find the average of two numbers, add the numbers and then divide by two.
Let
x ----> one number
y ----> the other number
The average is equal to
(x+y)/2
For x=180 and y=0
the average is equal to
(180+0)/2=90
therefore
The numbers 180 and 0 would make the average 90
Any
in this set will be real numbers that are both less than
and greater than
. But that's not possible, so this set is empty.
To estimate, round 3102 to 3100
round 1-10 to 2500
1-70 to 2100
1-80 to 2900
2900+2100+2500+3100=10600mi
Yes it is reasonable because you add and subtract numbers when estimating, however it is not exact
