How do you work out the average of two numbers
Asked by admin @ in Mathematics viewed by 270 People
The average of two numbers is 11. the difference between is 4 , find the sum of the two numbers
please help
Asked by admin @ in Mathematics viewed by 270 People
The average of two numbers is 11. the difference between is 4 , find the sum of the two numbers
please help
Answered by admin @
Answer:
22
Step-by-step explanation:
Let the first number be x.
Let the second number be y.
(x+y)/2 = 11
x-y=4
Solve for x in the second equation.
x = 4 + y
Put x as 4 + y in the first equation and solve for y.
(4+y+y)/2 = 11
4 + 2y = 22
2y = 18
y = 9
Put y as 9 in the second equation and solve for x.
x = 4 + 9
x = 13
Find the sum of the numbers x and y.
x + y
13 + 9
= 22
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