iams2abugSa7mariAnay iams2abugSa7mariAnay

01-04-2017
Mathematics

contestada

If the the length of a rectangle is 5cm longer than twice the length of the width and the area if the rectangle is 403 square centimeters,what is the width?

Respuesta :

charlottekrist charlottekrist

01-04-2017

x=width
(2x+5)=length
x(2x+5)=403
2x^2-5x-403=0
2x^2+26x-31x-403=0
2x(x+13)-31(x+13)=0
(x+13)(2x-31)=0
x=-13 or x=31/2
Since, our number cannot be negative, x=31/2

Have a nice day :D

Answer Link

Otras preguntas

A bucket has a radius of 11cm and is 22cm tall. I am going to use it to fill up a padding pool that has dimensions 1m by 3m by 1m. How many time will I have to

HELPPP DUE AT 4:00!!! 30 points!!! Question 6 (5 points) A right circular cylinder has the dimensions shown below. r = 3 cm h= 5 cm Find the exact surface area

How would you describe the landforms in central Europe?

the derivative of cotxlet y =cotx

The ratio of the present ages of Reshma and Rekha is 2:3.After how many years,the ratio of their ages will be 5:7?

suppose you are the general manager of DDC.write a press release for increasing the price of product

Which condition will prove that line l is parallel to line m? ∠6 ≅ ∠5 ∠1 ≅ ∠6 ∠1 ≅ ∠3 ∠3 ≅ ∠5

Infant is to infancy as delinquent is to?

A rectangle has a perimeter of 24m and an area of 35 m2. If the length and width are each increased by 1m, what will be the area of the new rectangle

Jon and Austen got in trouble at football practice and have to run laps as a consequence. Jon, who runs at a rate of 3 laps per minute, had completed 10 laps al