A grocery store buys items and then applies a markup of 70%. What is the retail price of item that originally costs $10?
2 answers:
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Factor
find wht 2 numbers add to 8 and multiply to 3
none do
use quadratic formula which can be used when
ax^2+bx+c=0
x=
a=1
b=8
c=3
x=
x=
x=
x=
x=
x=
or x=
aprox x=-7.60555 or x=-0.394449
find wht 2 numbers add to 8 and multiply to 3
none do
use quadratic formula which can be used when
ax^2+bx+c=0
x=
a=1
b=8
c=3
x=
x=
x=
x=
x=
x=
aprox x=-7.60555 or x=-0.394449