in a shop, the price of 10 and 3 notebooks is 89 rupees. the price of one pen is 7 rupees find the price of such 5 notebook and 5 pen
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let x be the number of pens and y be the number of note books.
10x + 3y= 89
10(7)+ 3y = 89
3y = 89 - 70
3y = 19
y = 6.4
cost of 5 notebooks is 5 * 6.4 = 34
cost of 5 pens is 5 * 7 = 35
10x + 3y= 89
10(7)+ 3y = 89
3y = 89 - 70
3y = 19
y = 6.4
cost of 5 notebooks is 5 * 6.4 = 34
cost of 5 pens is 5 * 7 = 35
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