All categories

3 years ago

the length of a rectangle is 50 feet less than its width. If the perimeter of the field is 840 feet, find the length of the fiel

Mathematics

1 answer:

LiRa [457]3 years ago

8 0

$look\ at\ the\ picture\\\\2a+2(a-50)=840\\\\2a+2a-100=840\\\\4a-100=840\ \ \ /+100\\\\4a=940\ \ \ \ /:4\\\\a=235\ (ft)\\\\a-50=235-50=185\ (ft)\\\\Answer:lenght=185\ ft;\ width=235\ ft.$

You might be interested in

The path followed by a roller coaster as it climbs up and descends down from a peak can be modeled by a quadratic function, wher

Romashka [77]

Answer:

$y = -0.1x^2 + 250 ft$

Step-by-step explanation:

Because this quadratic equation would have the curve-down form of:

$y = -ax^2 + b$

where a and b are positive coefficient.

If we let the peak (250 ft) of the curve be at x = 0. Then

$y = -a0^2 + b = 250$

$b = 250$

Also at the begins and ends, thats where y = 0, the 2 points are separated by 100 ft. So let the begin at -50 ft and the end at 50ft. We have

$-a(\pm 50)^2 + 250 = 0$

$-a2500 = -250$

$a = 250/2500 = 0.1$

Therefore, the model quadratic equation of our path would be

$y = -0.1x^2 + 250 ft$

8 0

3 years ago

What is the area of the picture below?

mart [117]

Answer:

A=130

Step-by-step explanation ❤️❤️

6 0

3 years ago

Whats the middle number in between 12 and 17

sattari [20]

Answer:

The middle number would be (14+15)/2 = 14.5

How I found that is I did (14+15)/2.

pls mark as branliest

3 0

3 years ago

Please help! Due soon

sesenic [268]

Answer:

its 2/6

Step-by-step explanation:

7 0

3 years ago

PLEASE PLEASE PLEASE HELP I WILL GIVE BRAINLIEST!!!!!!

Stells [14]

Answer:

In the mid-19th century, the quest for control of the West led to the annexation of Texas and the Mexican–American War. ... This expansion led to debates about the fate of slavery in the West, increasing tensions between the North and South that ultimately led to the collapse of American democracy and a brutal civil war.

Step-by-step explanation:

7 0

3 years ago