3 years ago

The difference between two numbers is 9 find the numbers if their sum is 46

Mathematics

2 answers:

Alik [6]3 years ago

6 0

Answer:

x - y = 9

x = 9 + y (equation 1)

Their sum is 46

x + y =46

(9 + y) + y = 46

9 + 2y = 46

2y = 46 - 9

2y = 37

y = 37/2

y = 18.5 ( one number)

second number =

place the value of y in equation 1

x = 9 + 18.5

x = 27.5

The two numbers are 18.5 and 27.5

Step-by-step explanation:

VladimirAG [237]3 years ago

4 0

X + y = 46 x=46-y

x - y= 9

46 - y - y= 9

46 - 2y = 9

Y=37/2

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What is (3.5×10)÷(7×10^-9)? <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B3.5%20%5Ctimes%2010%7D%7B7%20%5Ctimes%20%20%7B10%7

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