if 3 pencils and 2 notebooks cost 1.30 and 5 pencils and 1 notebook cost 1.00 how much do the notebook and pencils cost each

Answer 1

3p +2n = 1.3

5p + 1n = 1

10p +2n = 2

subtract 1st equation for last equation to get

7p =.7

p = .7/7 = 1/.1 = 10/1 = 10 cents per pen

n = 1-.1(3) = 70 cents per notebook

check the answers

3(.1) + 2(.7) = .3 + .7 = 1

they work