Posted by nicole on Tuesday, September 12, 2006 at 8:31pm.
okay guys, just one more word problem. and i don't think this one has any typos in it:
The perimeter of a rectangle is 27 cm and its area is 35 square centimeters. Find the length and the wide of the rectangle.
i just need help getting it started...
Ok P=27cm where P is the perimeter. A = 35cm^2 where A is the area.
We know that A =L*W and P=2(L+W) thus we have
(1) 35=L*W
(2) 27=2(L+W)
From (1) we have 35/L = W. Use this in (2) to get
27=2(L + 35/L) Now solve for L. This is a quadratic equation.
thanks a lot. i had been trying to do this for a long time :)
Velocity of 10 meters per second from the top of a 24 meter high cliff and it misses the cliff on the way down when will the rock be 4 meters from the water below?
y=x2-10x
# people have a combined height of 10 ft. 9 inches. A is 9 inches shorter than B, who is 6 inches taller than C. How talle are A,B, and C?
3 people have a combined height of 10 ft. 9 inches. A is 9 inches shorter than B, who is 6 inches taller than C. How talle are A,B, and C?
y=x(x-10)
x=0
x-10=0
solutions=0 and 10
rjty
The hypotenuse or a right angle has a length of 13 cm. The sum of the lengths of the other two sides is 17. Find the unknown side lengths.
No one has answered this question yet.
Answer this Question
Related Questions
french - please can you help me find the translations on the agenda = 2 words ...
math-word problem - The width of a rectangle is fixed at 21cm. What lengths will...
Word Processing - I'm a GranMa in my 60's trying to learn Word/Windows. ...
math-ms sue please - Ms Sue thank you for the help with my other word problem ...
ALG2! WORD PROBLEM! - define a variable and write an inequality for each problem...
Algebra - Word Problem: Jack mows the lawn in 4 hours, mary mows the lawn in 5 ...
ALgebra word problem - one number is 6 more than another. their product is 91. ...
SAT -English - Hi here is a following sentence. I know what is wrong with it, ...
English - 1. Put two scrambled word pieces together and make one complete word. ...
math - 2.-The longest one-word name of any place in America is ...
For Further Reading
