At a hardware store a tool set normally cost $80. During a sail this week the tool set cost $12 less than usual. What percentage
2 answers:
Answer:
As per the statement:
At a hardware store a tool set normally cost $80.
Cost of a tool set usual= $ 80.
During the sail this week the tool set cost $12 less than usual.
Cost after sail = $ 80 - $12 = $68
We have to find the percentage of the usual price is the savings.
Saving price on a tool set = $12
Substitute the given values we get;
Simplify:
Percentage of the usual price is the saving = 15%
Therefore, the percentage of the usual price is the saving is, 15%
You might be interested in
Solve the equations
first one
take the sqrt of both sides
x-y=√71
add y to both sides
x=y+√71
sub y+√71 for x in other part
(y+√71)²+y²=59
y²+2y√71+71+y²=59
2y²+2y√71+71=59
minus 59 both sides
2y²+2y√71+12=0
factor out 2
2(y²+y√71+6)=0
use quadratic equation or something
y=
and 
sub those for x
x=y+√71
note: √71=(2√71)/2
x=
,
or
x=
,
xy= times 
or times 
the result is -6 both times
xy=-6
first one
take the sqrt of both sides
x-y=√71
add y to both sides
x=y+√71
sub y+√71 for x in other part
(y+√71)²+y²=59
y²+2y√71+71+y²=59
2y²+2y√71+71=59
minus 59 both sides
2y²+2y√71+12=0
factor out 2
2(y²+y√71+6)=0
use quadratic equation or something
y=
sub those for x
x=y+√71
note: √71=(2√71)/2
x=
or
x=
xy=
the result is -6 both times
xy=-6