Answer:
Al pays $19.44 for the pants.ko
Step-by-step explanation:
First, let's calculate the sale price. The formula for this is:
p
=
c
−
(
c
⋅
s
)
Where:
p
is the sales prices, what we will be calculating.
c
is the regular cost of the items - $28.80 for this problem
s
is the sale percentage - 25% for this problem. "Percent" or "%" means "out of 100" or "per 100", Therefore 25% can be written as
25
100
.
Substituting and calculating
p
gives:
p
=
$
28.80
−
(
$
28.80
⋅
25
100
)
p
=
$
28.80
−
(
$
720.00
100
)
p
=
$
28.80
−
$
7.20
p
=
$
21.60
Now, we can calculate the final process taking into account the additional savings offered by the store.
We can use this same formula. However, now:
c
is the sale cost of the items - $21.60 for this problem
s
is the additional sale percentage - 10% for this problem. "Percent" or "%" means "out of 100" or "per 100", Therefore 10% can be written as
10
100
.
Substituting and again calculating for
p
gives:
p
=
$
21.60
−
(
$
21.60
⋅
10
100
)
p
=
$
21.60
−
(
$
216.00
100
)
p
=
$
21.60
−
$
2.16
p
=
$
19.44
Al pays $19.44 for the pants.
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