1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
timofeeve [1]
2 years ago
6

The area of a rectangular wall of a barn is 144 square feet. Its length is 10 feet longer than the width. Find the length and wi

dth of the wall of the barn.
The width is __feet.
Mathematics
1 answer:
denpristay [2]2 years ago
3 0

Answer:

8 feet

Step-by-step explanation:

Let l and w be length and width, respectively. Then:

lw=144   and

l=w+10

So:

w(w+10)=144

w²+10w-144=0

(w+18)(w-8)=0

w=8 as the width ................

You might be interested in
A plane traveled 1794 miles to Bangkok and back. The trip there was with the wind. It took 13 hours. The trip back was into the
Burka [1]

Answer:

The speed of wind is 30 miles/hour

Speed of plane in still air is 108 miles /hour

Step-by-step explanation:

Distance traveled by plane to Bangkok =  1794 miles

The trip there was with the wind. Time taken = 13 hours.

The trip back was into the wind. The trip back took 26 hours.

Let s = plane speed in still air

let w = speed of the wind

(s+w) = speed of plane with wind

(s-w) = speed of plane against wind

Distance = Speed * Time

When the trip was with the wind .

⇒1794 =(s+w)\times13

⇒\frac{1794}{13}=s+w

⇒138=s+w ---1

When The trip back was into the wind.

⇒1794 =(s-w)\times23  

⇒\frac{1794}{23}=s-w

⇒78=s-w ---2

Add 1 and 2

⇒s+w+s-w =138+78

⇒2s =216

⇒s=\frac{216}{2}

⇒s=108

To find w substitute the value of s in 1

⇒138=108+w

⇒138-108=w

⇒30=w

Thus the speed of wind is 30 miles/hour

Speed of plane in still air is 108 miles /hour

4 0
2 years ago
Please help! Will give branliest for correct answer ! <br> God Bless uu!!
mafiozo [28]

Answer:

Solution given:.

area of traingle EFG=1/2b×h=1/2×7×6=21cm²

area of rectangle ABCD=l×b=(20+9)×7=203cm²

area of rectangle BHIJ=l×b=9×11=99cm²

Total area =21+203+99=323<u>cm²</u><u> </u><u>is</u><u> </u><u>a</u><u> </u><u>required</u><u> </u><u>answer</u>

8 0
3 years ago
Read 2 more answers
Sasha makes a wooden base for a sculpture with the dimensions shown. The sculpture is too heavy for the base, so she needs to ad
galina1969 [7]

Answer:

A. 5.4

Step-by-step explanation:

I think... I haven't done this sort of question in a while

8 0
2 years ago
The difference between the amount of money spent on furniture and electrical appliances is 820. they spent a total of $12498 on
mariarad [96]
They spent 5839 on electrical appliances and 6659 on furniture
6 0
3 years ago
A line of best fit predicts that when x equals 28, y will equal 27.255, but y actually equals 26. What is the residual in this c
zlopas [31]

Answer:

C) -1.255

Step-by-step explanation:

We are tasked to solve for the residual value given that when x equals 29, y will be equals to 27.255. But, when it is tested, y actual value is 26. The formula in solving residual is shown below:

Residual value = Observed value - predicted value

Residual value =  26 - 27.255

Residual values = -1.255

The answer is -1.255 for residual value.

5 0
2 years ago
Other questions:
  • Aiutami con la mia matematica
    5·1 answer
  • Use the given information to find the lengths of the other two sides of the right triangle if side a is opposite angle A, side b
    5·1 answer
  • Katie has to write a summary on the life of William Howard Taft for her social studies class. Which of the following would be th
    9·2 answers
  • a fish was 35 feet below sea level. it quickly swim up and rise 2 feet into the air.how far did it travel from it previous posit
    11·1 answer
  • A triangle that contains angles of 35°, 90°, and 55° is a(n) _______ triangle. A. right B. acute C. obtuse D. equiangular
    15·2 answers
  • Why is the percent increase from 45 to 75 not equal to the percent decrease from 75 to 45? Select three options.
    11·2 answers
  • Use the method of disk or washer to set up, but do not evaluate, an integral for a volume of the solid obtained by rotating the
    5·1 answer
  • If John got a raise from $40,000 per year to $42,000 per year, what percent increase was his raise?
    14·2 answers
  • Mind lending a hand?
    8·2 answers
  • Sorry its simple but im stressing​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!