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svp [43]
2 years ago
14

WILL MARK BRINLIEST. Can someone help me wit den two questions?

Mathematics
2 answers:
VLD [36.1K]2 years ago
4 0

Answer:1. B 2. D

Step-by-step explanation:

stiv31 [10]2 years ago
3 0

Answer:

1-b 2-c

Step-by-step explanation:

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Five times the sum of the digits of a two-digit number is 13 less than the original number. If you reverse the digits in the two
mafiozo [28]

Answer:

The difference of the original two-digit number and the number with reversed digits is 18.

Step-by-step explanation:

Since it's a two digit number, let x represent the tens digit and let y represent the units digit.

Thus, the original two digit number is;

10x + y.

The reverse two digit number is;

10y + x.

We are told that five times the sum of the digits of the two-digit number is 13 less than the original number.

Thus;

5(x + y) = (10x + y) - 13

Multiplying out the bracket gives;

5x + 5y = 10x + y - 13

Rearranging gives;

10x - 5x + y - 5y = 13

5x - 4y = 13 - - - - (3)

Also,we are told that, four times the sum of its two digits is 21 less than the reversed two-digit number. Thus;

4(x + y) = (10y + x) - 21 - - - (4)

Simplifying gives;

4x + 4y = 10y + x - 21

>> 10y - 4y - 4x + x = 21

>> 6y - 3x = 21 - - - (4)

Solving eq(3) and (4) simultaneously gives;

x = 5 and y = 3

Thus,

Original number = 53

Reversed number = 35

Difference between original and reversed number = 53 - 35 = 18

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2 years ago
Bill removed the ten of spades and the king of hearts from a deck of standard playing cards and threw them in the trash. There w
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Answer:

Step-by-step explanation:

2 if you mean 1 of each so it would be 50 cards

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