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

If you have 3 moles of gas at a pressure of 2.5 atmospheres and a volume of 8 liters, what is the temperature? Pay attention to the unit of pressure used. A.)

0.510 (3+0.2) x -1.6-

The original price of a sweatshirt is $50. The sale price is 75% off the original price. Find the sale price of the sweatshirt.

Which is the best example of a topic that is too broad? A. why US students who attend schools abroad tend to be more successful B.events during the eighteenth c

Find Measure of angle B (m 18. a = 7 m, b = 5 m, m∠A = 45°

How much would you pay in move-in costs for the two-bedroom hometown apartment if you pay first and last month's rent, a $185 security deposit, and a 30 percent

Put the following equation of a line into slope-intercept form, simplifying all fractions. 2x-10y=-20

2x-y=7 x+y=5 Use elimination

A neutron star has a density of about kg/m3. what would be the approximate mass of a 1-centimeter cube (a cube 1 cm on all sides)? kg (1.3 quadrillion pounds) k

Which of the following shows an example of how family can influence your eating habits or relationship with food? Lana lives in an apartment building with seve