jeronimo18
13.12.2019 •
Mathematics
Atelevision on sale for 1/4 off original price. original price is 120 more then sale price. what is original price of tv
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Ответ:
Original Price = 160
Sale Price =40
Step-by-step explanation:
Let Original Price be x and Sale Price be y
y=1/4 of x (Equation 1)
x=120+y (Equation 2)
Put value of x from equation 2 in equation 1
y= (1/4)*(120+y)
y=120/4 + y/4
y-y/4=30
3y/4=30
y=30*4/3
y=40
Put value of y in Equation 2
x=120+40
x=160
Ответ:
Hope this helps :)