Answer:
what do you mean on the button side??
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given
--- Average
--- Average
Required
Determine the overall average
Represent the sum of the first three with x.
So:
Solve for x
Represent the sum of the next seven with y.
So:
Solve for y
The overall average is calculated as thus:
Answer: 12 servings
Step-by-step explanation:
If the lunch lady makes equal servings of 1/2 pound each and she had 6 pounds total it would be written like this: 6÷1/2
but you can't divide by a fraction so you multiply by the opposite reciprocal like this 6×2/1 or just 6×2
which gives you your answer of 12
Answer:
21600 feet
Step-by-step explanation:
There are 10800 seconds in 3 hours so multiply that by 2 and youll get 21600
Step-by-step explanation:
using
The quadratic general formula
which is
r= -b±√(b²-4ac)
---------------
2a
b= coefficient of r=3
a = coefficient of r²=2
c= constant or number without any variable=-10
r= -3±√(3²-(4×2×-10)
-----------------------
2×2
r=-3±√(9-(-80)
----------------
4
r= -3±√(9+80)
------------
4
