Ask
your own question, for FREE!
Mathematics
16 Online
OpenStudy (anonymous):
the length of a rectangle is 7 meters longer than its width. what is the width of this rectangle if its perimeter is equal to 86 meters?
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (whpalmer4):
\[A = lw\]\[P=2l+2w\]\[l = 7+w\] Substitute the 3rd equation into the second, set the result equal to the known perimeter, and solve for the length. Then use the third equation to find the width knowing the length, and plug both width and length into the first equation to find the area.
OpenStudy (texaschic101):
P = 2L + 2W P = 86 L = W + 7 now just sub all that into your formula and solve for W (width)
Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!
Join our real-time social learning platform and learn together with your friends!
Join our real-time social learning platform and learn together with your friends!
Latest Questions
Timmy23:
The miles stretch out like empty track, A heavy weight I cannot pack. You mean the world, you mean the sun, Yet here we are, the hard work doneu2014 Or tryi
EdwinJsHispanic:
Sad how it was so easy to make you say yes. Also sad how I really thought you would say no but you said the one word I'd never thought you'd say.
thereneelg:
Okay....I'm doing a group solo for choir. Auditions are Tuesday (?), Any tips on
Arizona:
my Rolling stone airpods won't connect and I got them about a year ago is there t
Arizona:
can someone check out my essay i'm doing in my senior English class about the McD
IcedShots:
I was wondering, is there anybody on here around my age? Im turning 15 on December 1 ud83dude0a.
thatonenerd:
Use Hvap of water = 40.7 kJ/mol, c of water = 4.184 J/g.u00b0C, and molar mass of HO = 18.
letrasbonitasz:
Typography plays an important role in digital communication. Different font styles can make social media profiles, usernames, messages, and creative designs
Timmy23:
The miles stretch out like empty track, A heavy weight I cannot pack. You mean the world, you mean the sun, Yet here we are, the hard work doneu2014 Or tryi
4 hours ago
5 Replies
0 Medals
EdwinJsHispanic:
Sad how it was so easy to make you say yes. Also sad how I really thought you would say no but you said the one word I'd never thought you'd say.
20 hours ago
1 Reply
0 Medals
thereneelg:
Okay....I'm doing a group solo for choir. Auditions are Tuesday (?), Any tips on
17 hours ago
1 Reply
0 Medals
Arizona:
my Rolling stone airpods won't connect and I got them about a year ago is there t
2 days ago
3 Replies
0 Medals
Arizona:
can someone check out my essay i'm doing in my senior English class about the McD
4 hours ago
3 Replies
0 Medals
IcedShots:
I was wondering, is there anybody on here around my age? Im turning 15 on December 1 ud83dude0a.
2 days ago
3 Replies
0 Medals
thatonenerd:
Use Hvap of water = 40.7 kJ/mol, c of water = 4.184 J/g.u00b0C, and molar mass of HO = 18.
4 days ago
5 Replies
0 Medals
letrasbonitasz:
Typography plays an important role in digital communication. Different font styles can make social media profiles, usernames, messages, and creative designs
5 days ago
3 Replies
1 Medal