+0  
 
0
20
2
avatar

Martina went shopping. She spent a fifth of what she had in her wallet and then a fifth of what remained. In all, she spent $36. How much did she start with?

 Jan 14, 2020
 #1
avatar
0

Marina started with 124 dollars.

 
 Jan 14, 2020
 #2
avatar+19816 
+1

x is th amount she starts with in her wallet.

 

she spends 1/5 of x     1/5 x     so now she has 4/5x LEFT

 

of what she has LEFT , she spends 1/5   

   1/5  * 4/5x   

 

so all totalled she spent    1/5x   +    1/5 * 4/5 x   =36

                                          1/5x  + 4/25x =36

                                           5/25 x + 4/25 x = 36

                                           9/25 x = 36

                                                  x =36 (25/9) = original amount = $100.

 
 Jan 14, 2020

12 Online Users

avatar