Asked by Anonymous
The length of a rectangle was reduced by 10% and the width by x%. If the resulting dimensions reduced the area by 32.5%, what is the value of x?
A) 25
B) 21
C) 18
D) 13
I don’t know what to do at all.
A) 25
B) 21
C) 18
D) 13
I don’t know what to do at all.
Answers
Answered by
Steve
the area LW is changed to
(.90L)(1 - x/100)W = 0.675LW
.9(1-x/100)=0.675
1-x/100 = 0.75
x/100 = .25
x = 25
or, you could just have said
.9*z=.675
z=.75
so the width was 75% of its original size
so, (A)
(.90L)(1 - x/100)W = 0.675LW
.9(1-x/100)=0.675
1-x/100 = 0.75
x/100 = .25
x = 25
or, you could just have said
.9*z=.675
z=.75
so the width was 75% of its original size
so, (A)
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.