Problema Solution
Anne has twice as many 5 peso coins as 10 peso coins in her piggy bank. If she has a total of P200 , how many of each kind are there?
Answer provided by our tutors
let
x = the number of 5 peso coins
y = the number of 10 peso coins
Anne has twice as many 5 peso coins as 10 peso coins in her piggy bank
x = 2y
she has a total of P200
5x + 10y = 200
by solving the system of equations
x = 2y
5x + 10y = 200
we find
x = 20 coins
y = 10 coins
click here to see the step by step solution of the system of equations
Anne has 10 five peso coins.
Anne has 20 ten peso coins.