The sum of two numbers is 26. Their dif.
ference is 4. Find the smaller number

The smaller number is 11

Step-by-step explanation:

Let x represent one number and y represent the other.

Since the sum of 2 number is 26, x + y = 26.

The difference of the 2 numbers is 4, so x - y = 4.

x + y = 26

x - y = 4

Solve by combing the two equations:

x + x + y - y = 26 + 4

2x = 30

x = 15

x - y = 4

15 - y = 4

y = 15 - 4 = 11

Since 11 < 15, the smaller number, y , is 11.

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

a)(x-2)^2+(y-1)^2=9

step-by-step explanation:

(picture explains)