Suppose 7 quarters, 4 dimes, 4 nickels, and 3 pennies are in a box. One coin is selected at random. What is the expected value of the money drawn from the box?

Answers

Answer 1

Since the quarters have a highest percentage. You would likely draw 25 cents from the box


Related Questions

functions occur when every x-value is associated with exactly one

Answers

The answer is y-value. A function is formed when one x-value corresponds with one and only one y-value.

Holmes Junior High has 125 more students than Harper Junior High. When the two schools are merged there will be 579 students. How many students currently attend each school?

Answers

Answer: 454

Step-by-step explanation: Holmes has 125, Merged there is 579, 579-125 = 454 :) easy subtraction

A class of 128 students from civil, mechanical and electrical engineering backgrounds is divided into 2 sections (sections A and B). Section A contains of 18 civil engineers and a total of 50 students. Section B contains 44 mechanical engineers. There are a total 40 civil engineers and 60 mechanical engineers in the class. What is the probability that a random electrical engineering student is from section A

Answers

Answer:

The probability is 0.5714

Step-by-step explanation:

This is a probability question. We are interested in calculating the probability that a random electrical engineering student is from section A.

Mathematically the probability will be;

Number of electrical engineering students in section A/ Total number of electrical engineering students in both sections

Total number of electrical engineering students = 128 - 60 -40 = 28

Now let’s calculate the number of electrical students from section A

Number of mechanical and electrical = 50-18 = 32

Now, there are a total of 60 mechanical engineers and 44 in B; So the number of mechanical engineers in A = 60-44 = 16

So the number of electrical engineers in A = 32-16 = 16

So the probability will be;

16/28 = 4/7 = 0.5714

A box is 21 centimeters tall. How tall would the box measure in meters?

Answers

Answer:

0.21

Step-by-step explanation:

divide the length value by 100  21 centimeters in meters is 0.21

Answer:

0.21 its the k12 test.

Step-by-step explanation:

132891 round the nerast hundred

Answers

Pretty sure that 132,891 rounded to the nearest hundred is 132,900

find the integer that makes this subtraction statement true -3 - ? = -5

Answers

Answer:

[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{2}}}}}[/tex]

Step-by-step explanation:

Let the missing integer be x

Solve for x

[tex] \sf{ - 3 - x = - 5}[/tex]

Move 3 to right hand side and change it's sign

[tex] \dashrightarrow{ \sf{ - x = - 5 + 3}}[/tex]

The negative and positive integers are always subtracted but posses the sign of the bigger integer

[tex] \dashrightarrow{ \sf{ - x = - 2}}[/tex]

Change the signs of both sides

[tex] \dashrightarrow{ \boxed{ \sf{x = 2}}}[/tex]

Hope I helped!

Best regards! :D

What is the answer PLEASEE

Answers

Answer:

[tex]3^{-4}[/tex]

Step-by-step explanation:

[tex]3^5\cdot \:3^{-9}=3^{5-9}=3^{-4}[/tex]

There are 48 empty seats and 52 occupied seats on an airplane. What is the ratio of the number of empty seats to the number of occupied seats?

Answers

Answer:

48/52

Step-by-step explanation:

Find the 9th term of the geometric sequence 4, 16, 64, ...

Answers

Answer: Just keep multiplying by 4 after 64 like multiply 64 times 4 and do that number times  and keep doing that until its the 9th answer :)

Step-by-step explanation:

A geometric series is the sum of an unlimited number of terms with a fixed ratio between them. The 9th term of the geometric sequence 4, 16, 64, ... is 262,144.

What is geometrical series?

A geometric series is the sum of an unlimited number of terms with a fixed ratio between them.

The first term of the series is 4, while the ratio of the geometric sequence:

[tex]\rm Ratio, r = \dfrac{16}{4} = 4[/tex]

Thus, the 9th term of the geometric series can be written as,

[tex]a_n = a_1 \times r^{(n-1)}\\\\a_9 = 4 \times 4^8\\\\a_9 = 262,144[/tex]

Hence, the 9th term of the geometric sequence 4, 16, 64, ... is 262,144.

Learn more about Geometrical Series:

https://brainly.com/question/4617980

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Which of the following can not be used to express the number 8?
eight below zero
positive eight
+8
eight more than zero

Answers

Answer:

A positive number or a number that is greater than zero

Step-by-step explanation:

Use the grouping method to factor the polynomial below completely.
x2 – 3x2 + 5x - 15
A. (x+3)(x - 5)
B. (x - 3)(x+5)
O C. (X - 5)(x+3)
O D. (2 + 5)(x-3)

Answers

Step-by-step explanation:

You can let me know, but i dont think -3x² is supposed to be squared in this question because then it would make it unsolvable.

5x-15

can be simplified to 5(x-3)

x²-3x

can be simplified to x(x-3)

Then u rewrite it (5 + x)(x - 3)

Find the measures of angles 1 through 5 in the figure shown.
Its 4 PARTS​

Answers

Angle 1 = 44
Angle 2 = 136
Angle 3 = 44
Angle 4 = 136
Angle 5 = 62

The measure of angle ∠1 is 44 degrees and the measure of angle ∠5 is 62 degrees.

What is an angle?

Angle is the space between the line or the surface that meets.  And the angle is measured in degree. For complete 1 rotation, the angle is 360 degrees.

Vertically opposite angle - When two lines intersect, then their opposite angles are equal.

Complementary angle - Two angles are said to be complementary angles if their sum is 90 degrees.

Angle ∠1 and 46° are complementary angles. Then we have

∠1 + 46° = 90°

        ∠1 = 44°

Angle ∠1 and ∠3 are vertically opposite angles. Then we have

∠1 = ∠3 = 44°

The sum of all the angles of the triangle is 180 degrees. Then we have

∠3 + 74° + ∠5 = 180°

44° + 74° + ∠5 = 180°

                 ∠5 = 62°

More about the angled link is given below.

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Is 5 a solution to 2x + 5 = 15? Yes or No
How do you know?

Answers

Answer:

Yes

Step-by-step explanation:

yes because when you place 5 in the x spot you arrive a final answer of 15=15

Help me ASAP plssssssssssssssssssssss

Answers

Answer:

the answer is d i think try it.

Hannah had $237 in her
bank account at the start of
the summer. She worked for four
weeks and now she has $1685
in her bank.how much did Hannah make each week in her summer job

Answers

Answer:

$362

Step-by-step explanation:

Step 1:

$1685 - $237

Step 2:

$1448 ÷ 4

Answer:

362

Hope This Helps :)

(URGENT) Country A produces about four times the amount of diamonds in carats produced in country B. If the total produced in both countries is 20,000,000 carats, find the amount produced in each country.

Answers

Answer:

A: 16,000,000 caratsB: 4,000,000 carats

Step-by-step explanation:

If the ratio is ...

  A : B = 4 : 1

Then the ratio to the total is ...

  A : total = 4 : (4+1) = 4 : 5

  B : total = 1 : (4+1) = 1 : 5

Country A produces (4/5)×20 M carats, or 16 million carats.

Country B produces the remainder, 4 million carats.

Question 3 of 8
Which of the following are measurements for rectangles that are similar to a
rectangle with a width of 10 and a length of 20? Check all that apply.
A. 17 and 34
B. 2.5 and 6
O C. 15 and 30
0 D. 14 and 30
O E. 5 and 10

Answers

C and E are the corrects answers
C and E are the right answers.

A candy store sells mints in 14, 12 , and 34 lb packages. John purchases several packages of each weight.

What is the weight of 6 packages of the 14 lb package?

Answers

Answer:

84 lbs

Step-by-step explanation:

Multiply 14*6 to get the total weight

what are strategies to find rational numbers

Answers

Rational number x and y is to dived their sum by 2

Chen burns 354 calories in 1-hour swimming. He swam for 28 hours last month. How many calories did Chen burn in all last month from swimming?

Answers

Answer: he burned 9912 calories all last month

Can someone answer this pls?? FAST

Answers

Correct answers= 18•2 1/4= 9

Incorrect answers= 12•-1/2=-6

Answer= 3

During a recent beetle infestation, two-thirds of the ash trees in the area were destroyed. If 130 trees were destroyed, how many ash trees were originally in the area?

Answers

195.

set this up as a proportion with 2/3 = 130/x
130 x 3 = 390
390 / 2 = 195

Answer:

195 Trees

Step-by-step explanation:

2/3 is just 2 of 3 parts

2 parts of the trees is 130,

so divide 130 by 2, and that's 65.

Since you know 65 + 65 is the same as 2 out of 3

Then just add 65 one more time to equal 195.

Since, 65*3 is the same as saying 1 * 3 parts

130 is equal to 2/3, so 195 is equal to 3/3.

What is the Domain of the given graph?
(0,2)


(-3,0)

Answers

Answer:

dssds 8900

Step-by-step explanation:

dwdwdmunayaynd

The domains are 0 and -3 and the range is 2, and 0

Find JH
G. H. I. J
2. 12.

Answers

Answer:

JH = 17

Step-by-step explanation:

GH = 2

IJ = 12

GI = 7

find:  JH

HI =  7 - 2

HI = 5

JH = 12 + 5

JH = 17

Can someone help me with 4?

Answers

Answer:

ok so the answer is 343

Step-by-step explanation:

so for 4) you first use PEMDAS(Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction), and you do what's in the parenthesis first, so 7^4= 2401, that is inside the parenthesis, next you do the exponent outside the parenthesis, so is (2401)^2=5764801, and then you divide the 7^5=16807, so it looks like 5764801/16807=343

hope it helps

Answer:

The Answer is 343.

Step-by-step explanation:

First- We do the parenthesis first according to PEMDAS which is 7 x 7 x 7 x 7 equals 2401.

Next- We do 2401 x 2401 which equals 5764801.

Then- We do the bottom exponent which is 7 x 7 x 7 x 7 x 7 equals 16807.

Last- We divide 5764801 by 16807 and we get 343.

Hope this helps!

What is the value of AB?

Answers

Answer:

use the pythogoras thoerem making aright angled traingle

and multiply the result by 2

ab = 2*8 =16

Step-by-step explanation:

16 I think so it should be

Find the value of x that will make A||B.
A
B
4x
2x
X =
?

Answers

Answer:

x = 30

Step-by-step explanation:

Lines A and B are parallel lines and a transverse line is intersecting these lines at two distinct points.

By the definition of interior consecutive angles, sum of the measures of interior consecutive angles is 180°.

4x + 2x = 180°

6x = 180

x = 30

Therefore x = 30 will be the answer.

The cookie store had 187 cookie jars with 12 cookies in each cookie jar. How many cookies did the cookie store hav in all

Answers

15.5 I got this answer because I used a calculator.... I need help myself
2,224 total. just multiply 187 by 12

1. The most massive planet in the solar system, Jupiter, has a mass of about 1,898,000,000,000,000,000,000,000,000 kg. Estimate Jupiter's mass using a one-digit whole number times a power of 10. Be sure to include units.
A. 1.9 X 10^18 kg
B. 2 x 10^18 kg
C. 1.9 x 10^27 kg
D. 2x 10^27 kg​

Answers

Answer:

D. [tex] 2*10^{27} kg [/tex]

Step-by-step explanation:

Mass of Jupiter is given as 1,898,000,000,000,000,000,000,000,000 kg

Estimating this to the nearest whole number would be = 2,000,000,000,000,000,000,000,000,000 kg (rounding up the the "1,898")

To express this in scientific notation form, simply count how many zeros we have to the nearest whole number, 2.

We have 27 zeros there.

Therefore, we would multiply the whole number, 2, by 10 raise to the power of 27.

An estimate of the mass of Jupiter = [tex] 2*10^{27} kg [/tex]

Which is equivalent to (3 + 4i )(3 - 4i )?

Answers

Use the FOIL method to solve.

(3 + 4i)(3 - 4i)

(3 * 3) + (3 * -4i) + (4i * 3) + (4i * -4i)

9 - 12i + 12i - 16i

9 - 16i

Best of Luck!

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