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
qwelly [4]
3 years ago
12

the length of a rectangle is six inches more than width, if the preimeter of the rectangle is 24 inches find the length

Mathematics
1 answer:
Nostrana [21]3 years ago
3 0

Answer:

Length = 9 inches

Step-by-step explanation:

The perimeter of a rectangle is:

perimeter = 2(length + width)

24 = 2(a+b)

a = b + 6

a = length

b = width

then:

24 = 2((b+6)+b)

24/2 = b+6+b

12 = 2b + 6

12-6 = 2b

6 = 2b

b = 6/2

b = 3 inches

a = b+6

a = 3+6

a = 9 inches

Check:

24 = 2(9+3)

24 = 2*12

You might be interested in
What is the perimeter of the rectangle? Write your answer in scientific notation
marissa [1.9K]
The formula is 2(l+w) 
6 0
3 years ago
What's 1/2 of 4 3/8. Can you show me step by step
Fittoniya [83]
The answer is 2.1875
3 0
3 years ago
Read 2 more answers
Emilio throws a marshmallow into the air from his balcony. The height of the marshmallow (in feet) is represented by the equatio
Bumek [7]

Answer:

.18

Step-by-step explanation:

if ^2 is an exponent

(-16t*-16t)+8t+48

(258t+8t)+48

266t+48

48/266

.180

or .18

4 0
3 years ago
What is 138 rounded to the nearest hundredth
serg [7]

Answer:

hundred and hundredth are way different 11.75 I think it would be tho

Step-by-step explanation:

4 0
3 years ago
Aubrey is making cone-shaped hats for a birthday party. She mistakenly thinks that she will need about 104 square inches of pape
Mashutka [201]

Answer:

Option C. is the correct option.

Step-by-step explanation:

Given question is incomplete; here is the complete question.

Aubrey is making cone-shaped hats for a birthday party. She mistakenly thinks that she will need about 104 square inches of paper for each hat.

Cone with diameter six inches and slant height eight inches.

What is the correct amount of paper Aubrey will need per hat? Explain Aubrey’s mistake. Use 3.14 for π and round to the nearest inch.

A.  About 70 in2; Aubrey found the surface area of the cone, but did not include the base.

B.  About 70 in2; Aubrey used the diameter instead of the radius to find the surface area of a cone.

C.  About 75 in2; Aubrey found the surface area of the cone and included the base.

D.  About 75 in2; Aubrey found the volume of the cone instead of the surface area.

Lateral surface area of a cone = Paper required to for each hat

Lateral surface area = πrl

Here r = radius of the cone

l = lateral height of the cone

Lateral surface area = π(3)(8)

                                 = 75.36 square inches

                                 ≈ 75 square inches

Therefore, total paper required for each cap is about 75 square inches.

Total surface area of the cone (Lateral area + Area of the base)

= πr(r + l)

= 3.14(3)(3 + 8)

= 103.62

≈ 104 square inches.

Aubrey did a mistake by finding the total surface area (including base area) of the cone instead of lateral surface area.

Therefore, option C. is the correct option.

7 0
3 years ago
Other questions:
  • A pharmacist needs to fill an order for a 3% lidocaine topical cream. However, only 2% and 4% concentrations are in Stock. How m
    13·1 answer
  • The comfy couch furniture store purchased 3 1/3 pages to advertise upcoming sales for the summer. when the store did not receive
    9·1 answer
  • Write a triple integral including limits of integration that gives the volume of the cap of the solid sphere x2+y2+z2≤5 cut off
    10·1 answer
  • What is the value of 6x2−4x when x = 5?
    8·2 answers
  • Wilma performs the elementary row operation represented by 2R1 - R3 on matrix A.​
    10·1 answer
  • I need help on this questions. These sequences are hard.<br>​
    7·1 answer
  • What are the proofs for these questions?
    11·1 answer
  • Shari purchased 87 erasers at the rate of $3 per eraser. She sold 63 of them at the rate of $3.50 per eraser and the remaining a
    5·1 answer
  • If the measure lf 2 is 83, what is the measure of 3?
    14·1 answer
  • Graph the lines in standard form 2x+y=9
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!