lyzetcoralynn lyzetcoralynn

17-05-2018
Mathematics

contestada

The length of a rectangle is 4 meters less than three times its width. Its area is 615 square meters. What are the dimensions of the rectangle?

Respuesta :

rohanaitharaju rohanaitharaju

17-05-2018

area= length*width

width=W

W*(3W-4)=615
3W^2-4W=615
3W^2-4W-615=0
W=41
W=-45
But W cant be a negative number so it is 41m (width)
The length is (41*3)-4=119m (length)

Answer Link

Otras preguntas

(Confused!!!!!) What is the arc measure of a sector with area 38.485 ft2 and radius 7?

A radio active isotope decays according to the exponential decay equation where t is in days. Round to the thousandths place. For the half life: The half li

does the doppler effect occur for only some types of waves or all types of waves

which of these is the responsibility of public health? a. drug prescriptions b. disease diagnosis c. self exams for breast and testicular cancer d. disease rep

Which sentence correctly uses the word "so"?

What is the name of Africa's longest river?

The Gross National Product (GNP) is the value of all the goods and services produced in an economy, plus the value of the goods and services imported, less the

Solve for y: |3y+7|−10=−5

Joe contracted hepatitis a by eating contaminated doughnuts from a local bakery. the source of the disease is ___________ and the reservoir is ______________.

What are the sine, cosine, and tangent of Θ = 7 pi over 4 radians? sin Θ = negative square root 2 over 2; cos Θ = negative square root 2 over 2; tan Θ = 1 sin