Answer:
<u>x = 5</u>
Step-by-step explanation:
See attached image.
The answer to the problem is 220
This is a sum and difference problem, with the equations
R-N=35
R+N=635
The solution of which is
R=(635+35)/2=335
N=(635-35)/2=300
In general, the sum and difference problem can be solved (most of the time mentally) using
Larger number = (sum + difference)/2
Smaller number = (sum - difference)/2
4.5 x 4.5 = 20.25 x 4.5 = 91.125 in
Answer:
77
Step-by-step explanation:
Add all the numbers together (74+88+79+70+74) then divide by the amount of numbers there are (in this case 5) So (74+88+79+70+74=385) (385/5=77)
