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
madam [21]
3 years ago
9

a flat rectangular piece of aluminum has a perimeter of 64 inches. the length is 10 inches longer than the width. find the width

Mathematics
1 answer:
I am Lyosha [343]3 years ago
3 0

Answer:

The width of the piece is 11 inches

Step-by-step explanation:

Let

x ----> the length of the rectangular piece of aluminum in inches

y ----> the width of the rectangular piece of aluminum in inches

we know that

The perimeter of the rectangular piece of aluminum is equal to

P=2(x+y)

we have

P=64\ in

so

64=2(x+y)

simplify

32=x+y ----> equation A

x=y+10 ----> equation B

Solve the system by substitution

substitute equation B in equation A

32=y+10+y

solve for y

32=2y+10

2y=32-10

2y=22

y=11

therefore

The width of the piece is 11 inches

You might be interested in
A man walks along a straight path at a speed of 4 ft/s. A searchlight is located on the ground 20 ft from the path and is kept f
krek1111 [17]

Answer:

0.128rad/sec

Step-by-step explanation:

Let x represent the between the man and the point on the path

θ = the angle

dx/dt = 4 ft/s

dθ/dt = rate is the searchlight rotating when the man is 15 ft from the point on the path closest to the searchlight

tan θ = x/20 ft

Cross Multiply

20tan θ = x

dx/dt = 20sec² θ dθ/dt

dθ/dt = 1/20 × cos² θ dx/dt

dθ/dt= 1/20 × cos² θ × 4

dθ/dt = 1/5 × cos² θ

Note : cos θ = 4/5

dθ/dt = 1/5 × (4/5)²

dθ/dt = 16/125

dθ/dt = 0.128rad/sec

6 0
3 years ago
What is 11 hours and 55 minutes after 2:10
vekshin1
10+55= 05 Carry the 1 so 11+2+1= 14= 2
So your answer is 2:05. If you were doing am, it would be 205 pm and vice versa
4 0
3 years ago
Read 2 more answers
Need help with number 3
marin [14]
IM THINKING B.)
HOPE ITS RIGHT LOL 
3 0
3 years ago
A=1/2(a+b)h <br> SOLVE FOR "h"
Kamila [148]
Solving equations is a basic skill that you must master to deal with a lot of problems in mathematics, physics, chemistry, administration, economy, and almost every activity where you need to use a formula or a model. to solve for h, you follow these steps: 1) multiply both sides by 2 => 2A = (a+b)h; 2) divide both sides by (b+a) => 2A/ (a+b) = h. So the answer is: h = 2A / (a+b).
<span />
5 0
3 years ago
I have no idea how to solve this. please help?
matrenka [14]
I believe it’s c

π=C/2r
8 0
3 years ago
Other questions:
  • Consider a 30-year mortgage at an interest rate of 8% compounded monthly with a $1200 monthly payment. What is the loan amount (
    12·1 answer
  • Pentagon ABCDE is graphed with the following vertices A(4,6), B(9,6), C(7,1), D(4,0), and E(1,3). What would point C' be after a
    12·1 answer
  • What is the value of y?<br><br> a. 30<br><br> b. 120<br><br> c. 60<br><br> d. 180
    6·1 answer
  • All of these ODEs model a system with a spring, mass and dashpot.
    7·1 answer
  • Whats your biggest fear?<br><br>​
    6·2 answers
  • One angle in a triangle has a measure that is three times as large as the smallest angle. The measure of the third angle is 25 d
    9·1 answer
  • Naomi used a rectangle a square and a right triangle to form figure. What is the area of the shaded region of the figure in squa
    9·2 answers
  • If y is directly proportional to x and y is 12 when x = 10, what is the function rule that describes the variation?
    5·2 answers
  • A 52 foot ladder is set against the side of a house so that it reaches up 48 feet. If Jace
    9·1 answer
  • Karen spent 7/10 hour reading and 3/5 hours writing in her journal how much longer did karen spend reading than writing in her j
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!