Sheila went shopping and spent $120 on a coat. she then used 2/3 of the remaining money to buy a dress. she was left with 1/5 of her original amount of money. how much did sheila have at first?

Answer

Find out the how much did Sheila have at first .

To proof

Let us assume that the original amount of money be x .

As given

Sheila went shopping and spent $120 on a coat.

Than

money sheila has =  x - 120

Than the equation becomes

L.C.M of (5,3) = 15

solving

600 +13x = 15x

600 = 15x - 13x

600 = 2x

x = $300

The shelia have money be $300 .

Hence proved

step-by-step explanation:

107 units

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional