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
Gnom [1K]
2 years ago
7

120 high school seniors were asked,

Mathematics
1 answer:
MArishka [77]2 years ago
5 0

Using proportions, the estimate of the population percentage of seniors that will say they are going to the graduation party is of 62.5%.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct or inverse proportional, can be built to find the desired measures in the problem.

The estimate of a population proportion is the sample proportion. In this problem, the sample proportion is of 75 out of 120 students, hence:

p = 75/120 = 0.625 = 62.5%.

The estimate of the population percentage of seniors that will say they are going to the graduation party is of 62.5%.

More can be learned about proportions at brainly.com/question/24372153

#SPJ1

You might be interested in
Joana takes $20 to the arcade and it costs $2 for every game she plays.
Diano4ka-milaya [45]

Answer:

f(x) = 20-2x

Step-by-step explanation:

f(x) = 20-2x

f(6)=20-2*6=20-12=8

She can get a $5 lunch and still play 6 games, since after 6 games she still has $8.

7 0
3 years ago
Edmund purchased a computer for $1,800 on a payment plan (month zero). Three months after he purchased the computer, his balance
trapecia [35]

Answer:

Well I can't make a table but I can explain the answer.

Step-by-step explanation:

So you have $1,800 on a payment plan.  In three months, the balance is 1,350.  So 1,800-1,350=450.  This means he paid $450 in three months.  450/3 is 150.  He pays $150 a month.  Then 2 months later, (5 months after purchase) he has balance is $1,050.  1,350-1,050=300.  300/2=150.  Further evidence of the fact that he pays 150 dollars a month.  This means that the 6th month, he will have $900 dollars left on the payment.  7th month... $850, 8th month... $600, 9th month... $450, 10th month... 300 dollars, 11th month... 150, and 12 month he will have paid off all of his computer.  Hope it helps, sorry it is so long.  Have a great day!  :D

6 0
3 years ago
A region R in the xy-plane is given. Find equations for a transformation T that maps a rectangular region S in the uv-plane onto
ruslelena [56]
X(u, v) = (2(v - c) / (d - c) + 1)cos(pi * (u - a) / (2b - 2a))
y(u, v) = (2(v - c) / (d - c) + 1)sin(pi * (u - a) / (2b - 2a))

As v ranges from c to d, 2(v - c) / (d - c) + 1 will range from 1 to 3, which is the perfect range for the radius. As u ranges from a to b, pi * (u - a) / (2b - 2a) will range from 0 to pi/2, which is the perfect range for the angle. So, this maps the rectangle to R.
6 0
3 years ago
Please help find slope of the line!
GarryVolchara [31]

Answer:

(see picture)

Step-by-step explanation:

I used the slope formula.

6 0
3 years ago
A closed cylindrical tank of radius 1.50m and height 300cm, is made from a metal sheet. How much sheet is required?
Anika [276]

Answer: 13.5π≈42.41

Step-by-step explanation:

Basically it is asking for the circumference of this cylinder.

#1 Find the circumference of the circle base

Formula to use: 2πr

2πr=2π(1.5)=3π

---------------------------

#2 Find the area of the circle base

Formula to use: πr²

πr²=π(1.5)²=2.25π

--------------------------

#3 Find the area of body of the cylinder

Formula to use: lw

300cm=3m

l (length)= 3π (since the body of the cylinder the basing on the circumference of the circle base)

w (width)= 3

lw=3π×3m=9π

----------------------------

#4 Add all of them together

There are 2 base and one body

2.25π×2+9π=13.5π

4 0
3 years ago
Other questions:
  • How do u do volume?
    9·1 answer
  • 30 pts Johnna is cooking a roast that says, "Cook to 160°F." What is the Celsius equivalent of this temperature? A) 65° B) 71° C
    12·2 answers
  • The endpoints of the segment are (10,0), (20,0) How do you know the line is horizontal?
    13·1 answer
  • Brainliest + Points
    13·1 answer
  • 4. A glass decoration is made from a cylinder and cone that have the same height and share a base. The cone fits exactly inside
    13·1 answer
  • (15)Simplify the expression below. Show your work -(-7y+12)
    8·2 answers
  • What is 0.26% of400 ?
    10·2 answers
  • PLZ HELP!!!!
    11·1 answer
  • What is the length of AB
    15·1 answer
  • 6 - v = 260<br> Solve for V.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!