3 years ago

Please help me this is due tonight

Mathematics

1 answer:

hram777 [196]3 years ago

8 0

ANSWER:

Substitution prop of equality.

I'm not sure but I think this should be the answer.

Hope this helps! :)

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If you add the digits in a two-digit number and multiply the sum by 7, you get the original number. If you reverse the digits in

kolbaska11 [484]

The answer is A. 42

Solution:
Let x= ones digit, y=tens digit

1st condition (original number) : 7(x+y)=10y + x
2nd condition (new number by reversing the digits): 18+x+y=10x+y

simplifying:
1st condition: 6x=3y
2nd condition: x=2
substituting x=2 to 6x=3y
y=4

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3 years ago

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PolarNik [594]

Hello!

Step-by-step explanation:

Mean: 48

Median: 40

Mode: None

Range: 63

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