Question

A belt and a wallet cost 42.
7 belts and 4 wallets cost 213.Find the cost of each item

Answer 1

Step-by-step explanation:

This method is called elimination method

Answer 2

Answer:

belt is 15

wallet is 27

Step-by-step explanation:

Finding the cost of a belt and wallet

make use of variables:

belt = b

wallet = w

we can make two equations:

b + w = 42

7b + 4w = 213

we can solve this by using the elimination method

make both the variables of b the same

7 ( b + w = 42)

= 7b + 7w =294

now solve

7b + 7w =294

7b + 4w = 213

the 7b cancels out

7w - 4w = 294 - 213

3w = 81

w = 81/3

w = 27

finding the cost of the belt

make use of the value of w which is 27 , place this into the origional first equation

b + w = 42

b + 27 = 42

b = 42 - 27

b = 15

the cost of a belt is 15  and cost of a wallet is  27