All categories

3 years ago

The perimeter of a rectangular house is 122fr the width is 5ft less than the length find the length and width

Mathematics

2 answers:

polet [3.4K]3 years ago

4 0

Length x width is my suggestion

Step2247 [10]3 years ago

3 0

Hello,

Let's w the width , l the length, p the perimeter.

w=l-5
p=2(l+w)=2(l+l-5)=4l-10

4l-10=122
==>4l=122+10
==>4l=132
==>l=132/4
==>l=33
So w=33-5=28

Proof:
2*(33+28)=2*61=122

You might be interested in

3a+4b=5a-t solve for a

7nadin3 [17]

Answer:

2b+t/2=a

Step-by-step explanation:

3a + 4b = 5a-t

-3a -3a

4b = 2a - t

+t +t

4b + t = 2a

/2 /2

2b+t/2=a

5 0

3 years ago

Read 2 more answers

Answer #1,3,4,5,6,and 7

Fofino [41]

Can you type the answers in plz. I can't see the pic

7 0

3 years ago

A book is 9 inches wide and 13.5 inches tall.<br><br> What will the area of the front of the book?

Nina [5.8K]

Answer:

121.5

Step-by-step explanation: so what u are supost to do is multiply the sides which will give you your answer of 121.5.

8 0

3 years ago

Read 2 more answers

The sum of four times a number and five times another number is -28. The sum of nine times the first number and two times the se

Rina8888 [55]

Answer:

Step-by-step explanation:

$x,\ y-the\ numbers\\\\\text{The sum of four times a number and five times another number is -28:}\\\\4x+5y=-28\\\\\text{The sum of nine times the first number and two times the second number is 11:}\\\\9x+2y=11\\\\\text{We have the system of equations:}\\\\\left\{\begin{array}{ccc}4x+5y=-28&\text{multiply both sides by2}\\9x+2y=11&\text{multiply both sides by (-5)}\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}8x+10y=-56\\-45x-10y=-55\end{array}\right}\qquad\text{add both sides of the equation}$

$.\qquad-37x=-111\qquad\text{divide both sides by (-37)}\\.\qquad\qquad\boxed{x=3}\\\\\text{Put the value of x to the first equation:}\\\\4(3)+5y=-28\\12+5y=-28\qquad\text{subtrac 12 from both sides}\\5y=-40\qquad\text{divide both sides by 5}\\\boxed{y=-8}$

3 0

3 years ago

Loy paid $(4x+7) for a beef roast and $(2x-5) for five pounds of potatoes write an expression for the total amount he spent on f

maksim [4K]

The expression for the total amount he spent on food would be:

(4x+7) + (2x=5)

4 0

3 years ago