Math, asked by laraibsuleman11, 11 months ago

on average,a shallow bath uses 77 3/8 litres of water,whereas a deeper bath uses 88 3/4 litres of water
in one year,how much more water would always taking a deep bath use than always taking a shallow bath,if someone had 3 baths a week.
its math I accidentally put english

Answers

Answered by SUBRATA4322

Answer:

How do you find the number of integral solutions of the equation 2x + 3y = 763?

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8 Answers

Manish Dodrajka, Digital Marketeer

Answered Apr 25, 2014

2x + 3y = 763

=> y = (763 - 2x)/3

It has infinite integral solutions as there are infinite integral values of 'x' for which 'y' is an integer.

But the equation has finite number of positive integral solutions and I have solved for it.

Now, for 'y' to be an integer, (763-2x) must be a multiple of 3.

A little observation tells us that it happens when

763-2x=759,753,747,741,735,729......15,9 and 3.

=> x=2,5,8,11,14,17.........371,374,377,380

For each value of 'x', y can be calculated.

The values of 'x' forms an A.P.

so,

380 = 2 + (n-1)3

=>n=127.

Hence, there are 127 solutions to the ...