Asked by Lexi
Karin spent Ksh (shillings). 380 to buy 10 books and 3 pencils. Her sister Margaret used Ksh 195 to buy 5 books and two pencils.
a. What is the cost of one book and one pencil ?
b. If their sister, Jane, needs to buy six books and two pencils, how much money does she need ?
a. What is the cost of one book and one pencil ?
b. If their sister, Jane, needs to buy six books and two pencils, how much money does she need ?
Answers
Answered by
oobleck
list what they have told you:
10b + 3p = 380
5b + 2p = 195
Now just find b and p, and then evaluate 6b+2p
10b + 3p = 380
5b + 2p = 195
Now just find b and p, and then evaluate 6b+2p
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