Question

7. Sum of two numbers is 90.
Their difference is 10. Both the
numbers are​

Answer 1

Answer:

You can put this solution on YOUR website!

Let x+y=90 and x-y=18

Use any method to solve for the system of equations. I will use the subraction method:

x+y=90

x-y=18

________

2x=108

.

2x=108

2x/2=108/2

x=54

So,

54+y=90

y=36

Answers

x=54 and y = 36

Check the answers by plugging them back into the origina two equations.

Step-by-step explanation:

Answer 2

ᴀᴄᴄᴏʀᴅɪɴɢ ᴛᴏ ǫᴜᴇsᴛɪᴏɴ,

sᴜᴍ ᴏғ ᴛᴡᴏ ɴᴜᴍʙᴇʀs ɪs = 90

ᴀɴᴅ ᴛʜᴇ ᴅɪғғᴇʀᴇɴᴄᴇ ɪs = 10

ᴛʜᴇ ɴᴜᴍʙᴇʀs ᴀʀᴇ = ?

                            = ʟᴇᴛ ᴛʜᴇ ᴛᴡᴏ ɴᴜᴍʙᴇʀs ʙᴇ x

                            =  x + x + 10 =90

                            =  2x + 10 = 90

                      2x  = 90 - 10

                      2x  = 80

                       x = 80/2

                       x = 40

ᴛʜᴇʀᴇғᴏʀᴇ, x + 10 = 40 + 10 = 50

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