SOLUTION: the length of a crayon box base is 3 more than 4 times its width.IF the perimeter of the crayon box is 21 centimeters,find the lenght and width.
Algebra.Com
Question 184014: the length of a crayon box base is 3 more than 4 times its width.IF the perimeter of the crayon box is 21 centimeters,find the lenght and width.
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
L=3+4W
P=2L+2W
21=2(3+4W)+2W
21=6+8W+2W
21=6+10W
10W=21-6
10W=15
W=15/10
W=1.5 C. ANS.
L=3+4*1.5
L=3+6
L=9 C. ANS.
PROOF:
21=2*9+2*1.5
21=18+3
21=21
RELATED QUESTIONS
Write and solve two mathmatical sentences for the following problem:
The length of a... (answered by rapaljer)
Stevens crayon box is 7 cm wide, 2 dm long, and 4cm deep. What is the volume of... (answered by checkley79)
A standard 8-crayon box of Crayola crayons contains 1 red, 1 orange, 1 yellow,
1 green,... (answered by richwmiller)
The height of a rectangular box is 4 times its width, and its length is 6in more than its (answered by greenestamps)
A box contains 14 crayons. 11 crayons are purple (P) and 3 crayons are brown (B). You... (answered by solver91311)
A box contains 5 red, 6 blue, 3 green, and 2 yellow crayons. How many red crayons must be (answered by swincher4391)
The width of a rectangular box is 4 times its height, and its length is 7 more than its... (answered by JimboP1977)
The height of a rectangular box is 4 times its length, and its width is 5ft
more than... (answered by josgarithmetic)
A box is 720 cubic centimeters. The height of the box is five centimeters and width is w (answered by ankor@dixie-net.com)