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Sophie [7]
3 years ago
8

The average of two numbers is 11. the difference between is 4 , find the sum of the two numbers

Mathematics
2 answers:
Tanya [424]3 years ago
5 0

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

Yanka [14]3 years ago
3 0

Answer:

22

Step-by-step explanation:

let the numbers be x and y

\frac{x + y}{2}  = 11 \\ x - y = 4

so,

\frac{x + y}{2}  = 11 \\ x +y  = 11 \times 2 \\ x + y = 22

So they asked to find the sum of the two numbers

And the answer is <em>2</em><em>2</em>

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Step-by-step explanation:

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