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
padilas [110]
3 years ago
14

There are 25 students in a class. Sixteen of those students are boys. What percent of the class are girls?

Mathematics
2 answers:
Flauer [41]3 years ago
4 0

Answer:

36%

Step-by-step explanation:

you first do 25 minus 16 to find out how many girls are in the class which is 9

now u do 9/25 = ?/100 to find out the percent of girls

9 times 100 divided by 25 which gives u 36%

hope this helps

Pachacha [2.7K]3 years ago
3 0

Answer:

36% of the students are girls

Step-by-step explanation:

(Boys) 16/25 = 64%

(Girls) 9/25 = 36%

You might be interested in
How many colchicine tablets, each containing 600 mcg, may be prepared from 30 g of colchicine?
Leto [7]

Answer:

50,000 tablets may be prepared from 30g of colchicine

Step-by-step explanation:

This problem can be solved as a rule of three problem.

In a rule of three problem, the first step is identifying the measures and how they are related, if their relationship is direct of inverse.

When the relationship between the measures is direct, as the value of one measure increases, the value of the other measure is going to increase too.

When the relationship between the measures is inverse, as the value of one measure increases, the value of the other measure will decrease.

Unit conversion problems, like this one, is an example of a direct relationship between measures.

First Step:

The first step is knowing how many g are in a tablet.

Each gram has 1,000,000 mcg. So:

1g - 1,000,000 mcg

xg - 600 mcg

1,000,000x = 600

x = \frac{600}{1,000,000} = 0.0006

Each tablet has 0.0006g

Final step:

How many tablets may be prepared from 30g of colchicine?

1 tablet - 0.0006g

x tablets - 30g

0.0006x = 30

x = \frac{30}{0.0006}

x = 50,000

50,000 tablets may be prepared from 30g of colchicine

4 0
3 years ago
What question is a statistical question
velikii [3]

Answer:

A statistical question is one that can be answered by collecting data and where there will be variability in that data. This is different from a question that anticipates a deterministic answer.

Step-by-step explanation:

3 0
3 years ago
Step 1: Subtract 3 from both sides of the inequality
Tpy6a [65]

Answer:

add 8x to both sides

Step-by-step explanation:

5-8x<2x+3

first step, subtract 3 from both sides:

2-8x<2x

second step,?

2<?x

so you need to add 8x first

3 0
3 years ago
Betsy works a part-time job at a local clothing store. She is single, and her taxable income for 2005 was $5,500.
Dima020 [189]
A is the sneezer beacaus
5 0
3 years ago
Read 2 more answers
A particular brand of dishwasher soap is sold in three sizes: 25 oz, 45 oz, and 60 oz. Twenty percent of all purchasers select a
Verdich [7]

Answer:

(a) <u>Sampling distribution </u>

P(25) = 0,04

P(35) = 0.1 + 0.1 = 0,2

P(42,5) = 0.06 + 0.06 = 0,12

P(45) = 0,25

P(52,5) = 0.15 + 0.15 = 0,3

P(60) = 0,09

(b) E(X) = 45.5 oz

(c) E(X) = μ

Step-by-step explanation:

The variable we want to compute is

X=(X1+X2)/2

For this we need to know all the possible combinations of X1 and X2 and the probability associated with them.

(a) <u>Sampling distribution </u>

Calculating all the 9 combinations (3 repeated, so we end up with 6 unique combinations):

P(25) = P(X1=25) * P(X2=25) = p25*p25 = 0.2 * 0.2 = 0,04

P(35) = p25*p45+p45*p25 = 0.2*0.5 + 0.5*0.2 = 0.1 + 0.1 = 0,2

P(42,5) = p25*p60 + p60*p25 = 0.2*0.3 + 0.3*0.2 = 0.06 + 0.06 = 0,12

P(45) = p45*p45 = 0.5 * 0.5 = 0,25

P(52,5) = p45*p60 + p60*p45 = 0.5*0.3 + 0.3*0.5 = 0.15 + 0.15 = 0,3

P(60) = p60*p60 = 0.3*0.3 = 0,09

(b) Using the sample distribution, E(X) can be expressed as:

E(X)=\sum_{i=1}^{6}P_{i}*X_{i}\\E(X)=0.04*25+0.2*35+0.12*42.5+0.3*52.5+0.09*60 = 45.5

The value of E(X) is 45.5 oz.

(c) The value of μ can be calculated as

\mu=\sum_{i=1}^{3}P_{i}*X_{i}\\\mu=0.2*25+0.5*45+0.3*60=45.5

We can conclude that E(X)=μ

We could have arrived to this conclusion by applying

E(X)=E((X1+X2)/2)=E(X1)/2+E(X2)/2\\\\\mu = E(X1)=E(X2)\\\\E(X)=\mu /2+ \mu /2 = \mu

4 0
4 years ago
Other questions:
  • What is the product in lowest terms?
    5·2 answers
  • Mike has a rowboat for crossing the river. The rowboat can hold only 200 pounds without sinking. If mike has his two little brot
    12·1 answer
  • What is a classification for a triangle with angle measures of 20, 80, and 80 degrees,?
    15·1 answer
  • What is a rational number and how do you know?
    10·1 answer
  • The slope of the line containing the points (6, 4) and (-5, 3) is:<br><br> 1<br> -1<br> 1/11
    12·1 answer
  • Please help me and solve these, i will give brainliest and worth 25 points!!
    13·2 answers
  • Solve for y: 3(4y - 1) = 2(5y + ).<br> The solution is y =<br> The solution is
    5·1 answer
  • Kayla works in a department store selling clothing. She makes a guaranteed salary of $300 per week, but is paid a commision on t
    6·1 answer
  • Solve question 5 all steps
    15·1 answer
  • Please help m struggling
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!