problem 226 mathcounts

Mathematics
Tutor: None Selected Time limit: 1 Day

Each rectangle in a collection has a length 1 cm more than 3 times the width. What is the maximum possible width of one of these rectangles if its perimeter is less than or equal to 150 cm? Express your answer as a decimal to the nearest tenth.

Oct 5th, 2014

width x

length 3x+1

2(x+3x+1)=150

2(4x+1)=150

8x+2=150

8x=150-2

8x=148

x=148/8

x=18.5

maximum possible width is 18 cms

Oct 5th, 2014

Are you studying on the go? Check out our FREE app and post questions on the fly!
Download on the
App Store
...
Oct 5th, 2014
...
Oct 5th, 2014
Dec 9th, 2016
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer