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Verdich [7]
3 years ago
11

Find the value of x?

Mathematics
1 answer:
Kay [80]3 years ago
3 0
I believe your answer is 145
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The sum of the digits of a two-digit number is 8. If the digits are interchanged ,new number is 10 more than double the original
vova2212 [387]

Answer:

Original number 26.

Step-by-step explanation:

xy - two-digit number

1) x + y = 8

2) Original two-digit number can be written as

10*x + y

3) If the digits interchanged yx,

then the new number can be written as

10*y + x

4)  Double the original number is

2*(10*x + y)

5) New number is 10 more than double the original number

(10*y + x) - (2*(10*x + y)) = 10

6) Now we have the system of 2 equations:

x + y = 8

(10*y + x) - (2*(10*x + y)) = 10 -----> 10y + x - (20x + 2y) = 10 ---> 8y - 19x = 10

x = 8 - y

8y - 19(8 - y) = 10

8y - 152 +19y = 10

27y = 162

y = 6

x = 8 - y = 8 - 6 = 2

x = 2

So, x =2, y = 6.

Original number 26.

Check:

Original number 26.

New number 62.

Double of the original number = 2*26= 52.

New number is 10 more than double the original number :

62 - 52 = 10 True

6 0
3 years ago
What is the definition of addition
Katen [24]

Answer:

the difinition of addition is adding two things together

Step-by-step explanation:

5 0
3 years ago
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The figure below is the graph of the dimensions of a rectangle whose adjacent side lengths exhibit Inverse Variation (1,4) (2,2)
Stells [14]

Answer: true

Step-by-step explanation:

6 0
3 years ago
Which relation is a function?( click all that apply)
weeeeeb [17]
A, B, D are functions.
(First, second, and fourth response)
You can see which is function since for everyone input only has one value. You can also use the vertical line test.
7 0
3 years ago
Meghan made $458 in her last paycheck. If she would like to save at least $175 of it, how much can she spend?
Olenka [21]

Answer: $283

Step-by-step explanation:

If you subtract 458-175 you get 283 so that how much Megan can spend.

3 0
3 years ago
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