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
Iteru [2.4K]
3 years ago
15

Tom has 50 coins consisting of quarters and dimes. The combined value of coins is $8.30. How many dimes and quarters does Tom ha

ve:
dimes
quarters
Mathematics
1 answer:
klio [65]3 years ago
6 0

Answer:

thirty two quarters and three dimes

You might be interested in
The surface of each crystal has an area of
Umnica [9.8K]

Answer:

10,000,000,000 × 10^-1, 1/1,000,000,000^-1

Step-by-step explanation:

Im not sure what you are asking

7 0
3 years ago
Who likes black butler i can can speak grell
Kisachek [45]

Oh the ani me? I know the an ime if that’s what your talking about lol if not then I have no clue

5 0
3 years ago
Anyone know how to do this?
Finger [1]

Answer:

X = 2

Step-by-step explanation:

3 0
2 years ago
Salina’s age is one-quarter the age of her aunt. If a represents her aunt’s age, which expression represents Salina’s age?
ch4aika [34]
Salina is 1/4 of age of unt
s=1/4 times a
s=a/4
6 0
3 years ago
Read 2 more answers
3. The adult men of the Dinaric Alps have the highest average height of all regions. The
ahrayia [7]

Using the normal distribution, it is found that:

  • 3 - a) The 40th percentile of the height of Dinaric Alps distribution for men is of 72.2 inches.
  • 3 - b) The minimum height of man in the Dinaric Alps that would place  him in the top 10% of all heights is of 76.84 inches.
  • 4 - a) The 25th percentile for the math scores was of 71.6 inches.
  • 4 - b) The 75th percentile for the math scores was of 78.4 inches.

<h3>Normal Probability Distribution </h3>

In a <em>normal distribution </em>with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

  • It measures how many standard deviations the measure is from the mean.  
  • After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.

Question 3:

  • The mean is of 73 inches, hence \mu = 73.
  • The standard deviation is of 3 inches, hence \sigma = 3.

Item a:

The 40th percentile is X when Z has a p-value of 0.4, so <u>X when Z = -0.253</u>.

Z = \frac{X - \mu}{\sigma}

-0.253 = \frac{X - 73}{3}

X - 73 = -0.253(3)

X = 72.2

The 40th percentile of the height of Dinaric Alps distribution for men is of 72.2 inches.

Item b:

The minimum height is the 100 - 10 = 90th percentile is X when Z has a p-value of 0.9, so <u>X when Z = 1.28</u>.

Z = \frac{X - \mu}{\sigma}

1.28 = \frac{X - 73}{3}

X - 73 = 1.28(3)

X = 76.84

The minimum height of man in the Dinaric Alps that would place  him in the top 10% of all heights is of 76.84 inches.

Question 4:

  • The mean score is of 75, hence \mu = 75.
  • The standard deviation is of 5, hence \sigma = 5.

Item a:

The 25th percentile is X when Z has a p-value of 0.25, so <u>X when Z = -0.675</u>.

Z = \frac{X - \mu}{\sigma}

-0.675 = \frac{X - 75}{5}

X - 75 = -0.675(5)

X = 71.6

The 25th percentile for the math scores was of 71.6 inches.

Item b:

The 75th percentile is X when Z has a p-value of 0.25, so <u>X when Z = 0.675</u>.

Z = \frac{X - \mu}{\sigma}

0.675 = \frac{X - 75}{5}

X - 75 = 0.675(5)

X = 78.4

The 75th percentile for the math scores was of 78.4 inches.

To learn more about the normal distribution, you can take a look at brainly.com/question/24663213

5 0
2 years ago
Other questions:
  • Determine the vertex of the function f(x) = 2(x-4)^2+5
    12·1 answer
  • A number has 2 tens and 15 ones. Write the number in words.
    5·2 answers
  • If q is an odd number and the median of q consecutive integers is 120, what is the largest of these integers?
    12·1 answer
  • Find the area of the following ellipse.
    11·1 answer
  • What us the quotient of 1/8 divided by 3/4
    14·1 answer
  • What number must you add to complete the square x^2+4x=15
    8·1 answer
  • If triangle RED has vertices R(0,0) E(-3,4) and D(4,6), which of the following coordinates is E' of the dilation using the scale
    15·1 answer
  • If 5 miles=8 km about how many would be equal to 70 km
    9·2 answers
  • Round 69.65 to the nearest whole number.<br> A) 69 <br> B) 69.7 <br> C) 70 <br> D) 70.6
    8·2 answers
  • The price of a flight was increased by 2% to £700. What was the price before the increase? Give your answer to the nearest penny
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!