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motikmotik
3 years ago
11

The tens digit of a two-digit number is 3 less than the units digit. Find the original number, if the sum of that number and the

number reversed is 143.
Mathematics
2 answers:
vlada-n [284]3 years ago
7 0

Let...

x=ones digit

x-3=tens digit

The number in terms of x would be...

10(x-3)+x = 11x-30

The number with its digits reversed would be...

10(x)+x-3 = 11x-3

And...

11x-30+11x-3=143     We can solve for x!

22x=176

x=8

The number would be 58.

answer: 58

cricket20 [7]3 years ago
4 0

Answer:

58

Step-by-step explanation:

8-5=3

58+85=143

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Allushta [10]

Answer:

9/10

Step-by-step explanation:

You can write 9 as the numerator (top number), and 10 as the denominator (bottom number), and that will be equivalent to 0.9

3 0
3 years ago
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Need to see how you divide 247÷100
IrinaK [193]
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100 goes into 247
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Your answer would look like this:

2.47
6 0
3 years ago
Use the graph of the following function (x) to find the value. <br> f(1)
kvv77 [185]

From the graph of the given function , the value of f(1) = -1.

As given in the question,

From the graph of the given function,

Two coordinates from the graph are as follow:

( x₁ , y₁) = (1, -1)

( x₂ , y₂ ) = ( 0, -3 )

Equation of the line representing the function is given by:

(y - y₁) /(x-x₁) = ( y₂ -y₁)/ (x₂ -x₁)

⇒(y +1)/ (x-1) = (-3 +1)/ (0-1)

⇒ (y +1)/ (x-1) = 2

⇒y +1 = 2x -2

⇒ y = 2x -3

To get the value of x we have,

  y = f(x)

⇒f(x) = 2x -3

⇒f(1) = 2(1) -3

⇒f(1) = -1

Therefore, from the graph of the given function , the value of f(1) = -1.

Learn more about graph here

brainly.com/question/17267403

#SPJ1

3 0
1 year ago
PLEASE HELP ME!!!!<br><br> Given f(x) = 2x + 3 and<br> g(x) = 2 ^ x <br> What is f(3) - g(4) ?
valentinak56 [21]

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7 0
3 years ago
Which polygon has an interior angle sum of 1080
Crank
Octagon has 8 sides so the sum of the angles of the octagon is 180(8-2)=180 (6)=1080 degrees
5 0
3 years ago
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