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
vitfil [10]
3 years ago
7

Tickets for play cost $3 for children and $10 for adults a group of 25 people paid a total of 201 for tickets to the play. How m

any children were in the group
Advanced Placement (AP)
1 answer:
Nastasia [14]3 years ago
7 0
7 were children and 18 were adults
You might be interested in
How is religion related to food, language, and architecture?
masya89 [10]
The answer is D or B we had the same question in our DCA and it was between those 2 but we only knew that it was between those two answer choices
7 0
3 years ago
Read 2 more answers
What trend are we seeing with glaciers over the last century
Andreas93 [3]

There are more glaciers melting around the world due to global warming.

3 0
3 years ago
Surface Area of a can is 517.8 cm^2. Maximize the volume of this can using the measured surface area.
mafiozo [28]

Answer:

r = 5.24 --- Radius

h = 10.48 --- Height

Explanation:

Given

Object: Can (Cylinder)

Surface\ Area = 517.8cm^2

Required

Maximize the volume

The surface area is:

S.A = 2\pi r^2 + 2\pi rh

Substitute 517.8 for S.A

517.8 = 2\pi r^2 + 2\pi rh

Divide through by 2

258.9 = \pi r^2 + \pi rh

Factorize:

258.9 = \pi r(r + h)

Divide through by \pi r

\frac{258.9}{\pi r} = r + h

Make h the subject

h = \frac{258.9}{\pi r} - r --- (1)

Volume (V) is calculated as:

V = \pi r^2h

Substitute (1) for h

V = \pi r^2(\frac{258.9}{\pi r} - r)

Open Bracket

V = 258.9r - \pi r^3

Differentiate V

V' = 258.9 - 3\pi r^2

Set V' to 0

0 = 258.9 - 3\pi r^2

Collect Like Terms

3\pi r^2 = 258.9

Divide through by 3

\pi r^2 = 86.3

Divide through by \pi

r^2 = \frac{86.3}{\pi}

r^2 = \frac{86.3*7}{22}

r^2 = \frac{604.1}{22}

Take square root of both sides

r = \sqrt{\frac{604.1}{22}

r = 5.24

Recall that:

h = \frac{258.9}{\pi r} - r

Substitute 5.24 for r

h = \frac{258.9}{\pi * 5.24} - 5.24

h = \frac{258.9*7}{22 * 5.24} - 5.24

h = \frac{1812.3}{115.28} - 5.24

h = 15.72 - 5.24

h = 10.48

Hence, the dimension that maximize the volume is:

r = 5.24 --- Radius

h = 10.48 --- Height

7 0
3 years ago
This is kinda rigged -.-<br> My time is literally the same
ehidna [41]

Answer:

Yes, yes it is

Explanation:

7 0
2 years ago
Read 2 more answers
Which of the following statements about clear cutting is false?
Alina [70]

Answer:

C

Explanation:

I think

4 0
3 years ago
Other questions:
  • 1
    14·2 answers
  • How did legalism hope to return order to china
    8·1 answer
  • Of 200 male athletes at a high school, some play only basketball, some play only baseball, and
    5·1 answer
  • Manny walked a total of 3 miles. The reference point used to calculate the total distance that he walked was the same as the end
    12·2 answers
  • What are some goals of NYFEA?
    8·1 answer
  • ASL WORKSHEET :/<br> please help
    15·2 answers
  • Could someone please help me write a grabber for a DBQ? The question is why was china’s one child policy a good idea?
    14·1 answer
  • Which of the following correctly depicts the accounting equation?
    13·1 answer
  • How can you being more productive create a bigger paycheck for you compared to other workers in your industry?
    7·1 answer
  • 3. Find the general solution of the following differential equation. 1 (1 += sin²z) de +(+²2) dy-0 PROBLEM STEP BY STEP 2y EXPLA
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!