Patsy had twonies, $5, $10 and $20 bills, and paid exactly $71 for her new dress. how did she do it, using the least possible number of coins and bills?

Patsy had twonies, $5, $10 and $20 bills, and paid exactly $71 for her new dress. How did she do it, using the least possible number of coins and bills?

Step-by-step explanation:

To pay using the smallest number of bills and coins you have to start with the greater amount that is $ 20 x 3 bills = $ 60 + $ 10 x 1 bill = $ 70 + $ 2 x 1 bill = $ 72, and you were returned 1 $.

fa tha first one you gonna add y to both sides

it look like this

x-y+y=6+y

x=y+6

therefore your answer is

x =y+6

fa tha second one

you gonna flip tha equation

it gonna look like x-4y=y

then add 4 to both sides

it gonna look like tha

x-4 +4 =y +4

so therefore tha answer is x=y+4

step-by-step explanation: