shaarimal shaarimal

04-09-2018
Mathematics

contestada

The length of a rectangular carpet is 4 feet greater than twice its width. If the area is 48 square feet, find the carpet’s length and width.

Respuesta :

TheBreeze TheBreeze

04-09-2018

l = 2w + 4

l * w = 48

We can substitute l with its value:

2w + 4 * w = 48

2w^2 + 4w - 48 = 0

2(w^2 + 2w - 24) = 0

2(w+6)(w-4) = 0

w = {4, -6}

Answer Link

Otras preguntas

What work must be done to place a satelite of mass 30kg in orbit at a height of 50km above the earth with a velocity of 800m sec?

A group is selling chocolate-covered pretzels for 6 dollars per container and kettle corn for 8 dollars per container. They want to sell at least $2,800 in item

Plot A(2,3) and B(2,5). What is the midpoint of points A and B?

Select the values that make the inequality m 4 true. Then write an equivalent inequality, in terms of m. (Numbers written in order from least to greatest going

Amy thinks of three numbers, which she calls a, b and c. The ratio a: cis 4: 3. The ratio b: cis 7:5. The median of a, b and c is 80. Work out the values of a,

Amy thinks of three numbers, which she calls a, b and c. The ratio a: cis 4: 3. The ratio b: cis 7:5. The median of a, b and c is 80. Work out the values of a,

Which of the following statements is correct for a person that has active Hepatitis B? A. Symptoms may or may not be present B. Infected person's will have jaun

Joe and Ann buy some fruit from the same shop. Joe buys 4 apples and 3 bananas for £2.50 Ann buys 3 apples and 4 bananas for £2.40 Work out the cost of (i) one

Salmon often jump waterfalls to reach their breeding grounds. Starting downstream, 3.02 m away from a waterfall 0.258 m in height, at what minimum speed must a

1. The report tomorrow (finish).