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andrezito [222]
3 years ago
13

Dora is thinking of a number between 500 and 600

Mathematics
1 answer:
wariber [46]3 years ago
7 0

9514 1404 393

Answer:

  500 ÷ 8 = 62 r 4, for example

Step-by-step explanation:

In order to have a remainder of 4, the divisor must be greater than 4, so could be any of 5, 6, 7, 8, 9.

The corresponding numbers could be any of ...

  504 +5n . . . 0 ≤ n ≤ 19

  502 +6n . . . 0 ≤ n ≤ 16

  501 +7n . . . 0 ≤ n ≤ 14

  500 +8n . . . 0 ≤ n ≤ 12

  508 +9n . . . 0 ≤ n ≤ 10

__

For example, with the divisor being 6, and n=13, the number could be ...

  580 = 6·96 + 4

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8 0
3 years ago
2x - 3y = 12<br> x = 4y + 1
aliya0001 [1]

Answer:

x = 9, y = 2 is the solution of the given system.

Step-by-step explanation:

Here, the given set of equation is :

2 x - 3 y = 12

x = 4 y + 1

Now, from equation (2) we see that x = 4 y + 1.

Substitute the value of y from (2) in the first equation. we get:

2 x - 3 y = 12  ⇒ 2 (4 y + 1) - 3 y = 12

or, 8 y + 2 - 3 y = 12

or, 5 y = 12- 2  = 10

or, y = 10/ 5 = 2

or, y = 2

Now, x = 4 y + 1   ⇒ x  =  4(2)  + 1 = 8 + 1 = 9, or x = 9

Hence, x = 9, y = 2 is the solution of the given system.

5 0
3 years ago
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mario62 [17]
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8 0
2 years ago
Pre-calc <br> What is the remainder when x +4 is divided by x - 2?
GrogVix [38]

Answer:

6

Step-by-step explanation:

I apologize in advance for the awkward notation, but I'm trying my best.

        1

      _______

x-2 |  x+4

       -( x-2)

         _____

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Answer:

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Step-by-step explanation:

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3 years ago
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