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miskamm [114]
3 years ago
13

The units digit of a two-digit number is four more than the tens digit. If the number is doubled, it will be one more than the r

eversed number. Find the number. (Number: 32 Reversed number: 23)
Mathematics
2 answers:
Anestetic [448]3 years ago
7 0

Answer:

37

Step-by-step explanation:

2-digit number: 10x + y

y = x + 4

20x + 2y = 10y + x + 1

8y = 19x - 1

8x + 32 = 19x - 1

11x = 33

x = 3

Number: 37

Inessa [10]3 years ago
4 0

Answer:

Answer:

37

Step-by-step explanation:

2-digit number: 10x + y

y = x + 4

20x + 2y = 10y + x + 1

8y = 19x - 1

8x + 32 = 19x - 1

11x = 33

x = 3

Number: 37

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Answer:

1.) -5

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Step-by-step explanation:

For number 1, you sub in -2 for x.

2 multiplied by -2 is -4, minus 1 = -5.

For the second one, sub in 5 for x.

-5 + 1 = -4.

6 0
3 years ago
Which postulate proves that △ABC and △EDC are congruent?
Diano4ka-milaya [45]

The correct answer is SAS.


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3 years ago
12(8b - 5) ? Please need an awnser
andrew-mc [135]
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Answer:

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