Your proof is correct and very well done
You just multiply 3 by both 15x and -17. None of these choices are correct. The only correct application would be A.
15 days because u set up a proportion : 4/3 = x/20 cross multiply then solve like an rquqtion
So paid160
75 percent off
100 percent=original
75 percent off=100-75=25%
160=25% of original cost
'of' means multiply
remember tha tpercent is parts out of 100 so
25%=25/100=1/4
160=1/4 times original cost
multily both sides by 4
640=original cost
answe ris $640 =original cost
Answer:
19.26$
Step-by-step explanation:
Sold DVD for
50
%
more of the purchase price of
12
$
so
12
+
50
100
(
12
)
=
12
+
6
18
So customer will pay
7
%
tax on
18
$
Hence he will pay
18
(
1.07
)
$
=
19.26
$
