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blondinia [14]
3 years ago
10

Jonah has a large collection of marbles he notices that if he borrows five marbles from a from a friend he can arrange the marbl

es in rows of 13 inch what is the remainder when he divides original number of marbles by 13
Mathematics
1 answer:
olga nikolaevna [1]3 years ago
5 0

Answer:

The remainder is 8

Step-by-step explanation:

Let Jonah's Marble=x

If he arranges x marbles into y rows of 13 each, and there are remainders(R)

Then:

x/13=y+(R/13).....(I)

If he borrows 5 marbles from a friend, there will be no remainder. However, the number of rows y, will be increased by 1

New Total Marbles=x+5

(x+5)/13=y+1.....(ii)

x+5=13(y+1)

x=13y+13-5

x=13y+8

From (I)

x=13y+R

Comparing the values of x derived from (I) and (ii)

13y+R=13y+8

Therefore the Remainder, R= 8

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