Answer:
23% probability the family has at least 3 children under the age of 21.
Step-by-step explanation:
If a family is selected at random, what is the probability the family has at least 3 children under the age of 21?
15% have three children under the age of 21
5% have 4 children under the age of 21
3% have 5 or more children under the age of 21.
So:
15% + 5% + 3% = 23%
23% probability the family has at least 3 children under the age of 21.
answer the qui of the day you have 7 quetion to answer and i give you 20 ponits
Answer:
all of them are correct
Hiya! :)
Answer:
They are all correct
Hope this helped!!!
Because of bad weather, the number of days next week that the captain of a charter fishing boat can leave port is uncertain. The following probability distribution for the number of days that the boat is able to leave port per week was determined based on historical data when the weather was poor: The number of days the boat can leave port per week Probability 0 0.20 1 0.05 2 0.05 3 0.05 4 0.15 5 0.10 6 0.15 7 0.25 Based on the probability distribution, what is the expected number of days per week the captain can leave port. Group of answer choices 3.55 4.00 3.50 4.05 2.85
Answer:
The expected number of days per week the captain can leave port is 4.05.
Step-by-step explanation:
We are given the following distribution:
[tex]P(X = 0) = 0.2[/tex]
[tex]P(X = 1) = 0.05[/tex]
[tex]P(X = 2) = 0.05[/tex]
[tex]P(X = 3) = 0.05[/tex]
[tex]P(X = 4) = 0.15[/tex]
[tex]P(X = 5) = 0.1[/tex]
[tex]P(X = 6) = 0.15[/tex]
[tex]P(X = 7) = 0.25[/tex]
What is the expected number of days per week the captain can leave port.
We multiply each outcome by its probability. So
[tex]E = 0*0.2 + 1*0.05 + 2*0.05 + 3*0.05 + 4*0.15 + 5*0.1 + 6*0.15 + 7*0.25 = 4.05[/tex]
The expected number of days per week the captain can leave port is 4.05.
(a) Angela and Barbra decided to start a business together. Angela invested $24000 and Barbara invested
$16000. They share all profits in the same ratio as the money was invested. they made a
total profit of $15000 at the end of the year, how much money did each person recieve?
(b) sum of money is shared among two friends in the ratio 4:9. If the smaller amount is $560, find the
larger amount.
(c) The sum $4500 is divided among Anesha, Sian and Joanne. Sian received half, Anesha received $1050
and Joanne recieved the remainder. Calculate:
i. Sian's share
ii. Joanne's share
iii. The ratio in which the $4500 was divided among the three persons in simplest form.
9514 1404 393
Answer:
(a) A : B = $9000 : $6000
(b) $1260
(c) A : S : J = $1050 : $2250 : $1200 = 7 : 15 : 8
Step-by-step explanation:
(a) The investment ratio is ...
Angela : Barbara = 24000 : 16000 = 3 : 2
The profit of 15,000 goes 3/(3+2) = 3/5 to Angela, and 2/5 to Barbara:
Angela's share: (3/5)($15,000) = $9,000
Barbara's share: (2/5)($15,000) = $6,000
__
(b) We can multiply the ratio by $140 to see the larger amount:
4 : 9 = ($140)(4) : ($140)(9) = $560 : $1260
The larger share is $1260.
__
(c) Sian gets (1/2)($4500) = $2250. Anesha gets $1050. So Joanne gets ...
$2250 -1050 = $1200
Then the shares are ...
i. Sian: $2250
ii. Joanne: $1200
iii. Ratios: A : S : J = 105 : 225 : 120 = 7 : 15 : 8
A recipe uses 3 eggs to make 2 dozen cookies. There are 12 cookies in 1 dozen. How many eggs are used to make 6 dozen cookies? A.3 B.6 C.9 D.12 please help it would mean a lot <3
Answer:
C.9
Step-by-step explanation:
2 doz =3eggs
4 doz = 6 eggs
6 doz = 9 eggs
Two boards are placed end to end to make a walkway. One board is 5 feet 11 inches long, and the other board is 4 feet 6 inches long. How long is the walkway?
Write your answer in feet and inches. Use a number less than 12 for inches.
Answer:
10 feet 5 inches long
Step-by-step explanation:
12 inches = 1 foot
11 inches + 6 inches = 17 inches = 1 foot 5 inches
1 foot 5 inches + 5 feet + 4 feet = 10 feet 5 inches
Therefore, the walking board is 10 feet 5 inches long
You know that a rope is no more than 100 feet long. You need to cut the rope into three pieces the second piece is to be three times as long as the first piece, and the third piece must be 18 feet long. What is the maximum length of the second piece?
Answer:
hi
Step-by-step explanation:
The rope is originally 100 ft. long. The first piece is 32 ft., leaving 100–32, or 68 ft.
Let n be the second piece, and n-30 be the third piece. Then:
n+n-30=68
2n=98
n=49
n-30=19
The second piece is 49 ft. long; the third piece is 19 ft. long ……..
Represent 42 divided by 6 = 7 using subtraction
Answer:
42 - 6 - 6 - 6 - 6 - 6 - 6 - 6 = 0
or
42 - 7 - 7 - 7 - 7 - 7 - 7 = 0
Margaret charges $60 for 2 hours of math tutoring. Lyndsay charges $100 for 4 hours of math tutoring Who offers a better deal?
Answer:
Lyndsay charges a better deal
Step-by-step explanation:
With Lyndsay charging $100 for 4 hours you get $20 off because 4 hours with Margaret charges $120.
Answer:
Margaret
Step-by-step explanation: Lyndsay charges 25 dollars an hour for tutoring while Margaret only charges 20 dollars an hour for tutoring. Therefore, Margaret has a WAY better deal, Lyndsay charges 5 more dollars then Margaret.
60 divided by 2: 20
100 divided b 4: 25.
{~} Izzy ∩﹏∩ {~}
What is 7.456283 rounded to the nearest hundred thousandths place?
The answer will be 7.45628
Value of ratio 3/4 to 2
Answer:
3/8 or 0.375
Step-by-step explanation:
0.75/2 = 3/8
1/3 divided by 6 CAN ANYONE ANSWER THIS?
Answer:
1/18
Step-by-step explanation:
Answer:
1/18
Step-by-step explanation:
1/3 / 6/1 =1/3 x 1/6 = 1/18
Calculate the current in an Inductor if the energy stored is 240J and the Inductance is 24H.
Answer:
Current, I = 4.47 Amperes.
Step-by-step explanation:
Given the following data;
Inductance = 24H
Energy stored, Eind = 240J
To find the current;
The energy stored in an inductor is given by the formula;
Eind = ½LI²
240 = ½*24*I²
Cross-multiplying, we have;
480 = 24I²
I² = 480/24
I² = 20
Taking the square root of both sides, we have;
Current, I = 4.47 Amp
Area = 120 yd"
- 10 yd
Find the Height
Please help me
Cho and three friends made $217 mowing
lawns. How much will each friend get
when they split the money evenly? Write
your answer as a mixed number.
Answer:
72 1/3
Step-by-step explanation:
6 3/4"
What is 6 divided by 3/4
Answer:
8
Step-by-step explanation:
6÷[tex]\frac{3}{4}[/tex]
To make it easier, let's write 6 as a fraction.
[tex]6=\frac{6}{1}[/tex]
Now we get:
[tex]\frac{6}{1}[/tex]÷[tex]\frac{3}{4}[/tex]
Flip the numbers of [tex]\frac{3}{4}[/tex] and multiply instead of dividing and we get:
[tex]\frac{6}{1} *\frac{4}{3}=\frac{24}{3} =8[/tex]
Answer: 8
Step-by-step explanation:
6/1 * 3/4
cross multiply
8
Write a cosine function that has a midline of 2, an amplitude of 4 and a period of
8/3
Answer: f(x) = 4*cos(pi*(6/8)*x) + 2
Step-by-step explanation:
A generic cosine function is written as:
f(x) = A*cos(w*x + p) + M
where:
A = amplitude
w = angular frequency
p = phase
M = midline.
We know that:
the midline is 2, then M = 2
the amplitude is 4, then A = 4
There is no information about the phase, so p = 0.
And we know that the period is 8/3.
The period is written as T, and the relation between the period and the angular frequency is:
T = 2*pi/w
Then we have:
8/3 = 2*pi/w
w = (2*pi)*(3/8) = pi*(6/8)
where pi = 3.14
Then we have:
w = pi*(6/8)
A = 4
M = 2
p = 0
Then the cosine function is:
f(x) = 4*cos(pi*(6/8)*x) + 2.
5x (-3)
A .The amount of money a snack bar earns for selling 3 sandwiches for $5 per sandwich
B.The temperature change as it decreases 5 degrees every hour for 3 hours
С. A child grew 3 inches each year for 5 years
D.The change in elevation of a submarine as thinks 3 meters every second for 5 seconds
Answer:
you're answer is negative 15
can you help thanks this is my last one!
ill mark brainlist plss he,p
Answer:
blue and red
Step-by-step explanation:
hope it helped
Use Law of Sines or Law of Cosines to solve for the missing parts of each triangle
Answer:
[tex]x = 9.7[/tex]
Step-by-step explanation:
Given
The attached triangle
Required
Find x
Using law of sine, we have:
[tex]\frac{a}{sin A} = \frac{b}{Sin B}[/tex]
So, we have:
[tex]\frac{x}{sin 32} = \frac{18}{Sin 100}[/tex]
Make x the subject
[tex]x = \frac{18 * sin 32}{Sin 100}[/tex]
[tex]x = \frac{18 * 0.5299}{0.9848}[/tex]
[tex]x = 9.685[/tex]
[tex]x = 9.7[/tex] -- approximated
349324923420 × 4π × 9π × 9908=?????
FREE AWARD!!!!!
1.2297528e+18
There ya go
Can someone please help!!
Answer:
the second to last one!!!
Step-by-step explanation:
hope this helps
Find the area of the triangle. Round your answer to the nearest 10th. 10 6
Answer:
the answer is 30. you will get 30 for your answer
• En un vuelo con 200 pasajeros que se
dirigía a Miami, algunos pasajeros (clase
económica) pagaron $200.00 y otros
(primera clase) $250.00 por sus boletos
de avión. Si los ingresos por concepto de
venta de boletos en ese vuelo fueron de
$44,000.00, ¿cuántos boletos se
vendieron de cada categoría?
Answer:
1356545986--&_67ghtyojioftu?fuñt?fufldtuñf
Please answer both question above and below
A trapezoid has bases that measure 9 cm and 5 cm. The height of the figure is 4 cm.
What is the area of the trapezoid?
28 cm
36 cm
45 cm
90 cm
Answer:
Step-by-step explanation:
Could u attach a clear image??
A bag with 8 marbles has 4 red marbles, 3 blue marbles, and 1 yellow marble. A marble is chosen from the bag at random. What is the probability that it is red?
Write your answer as a fraction in simplest form.
Answer:
P = 4 / ( 4 + 3 +1 )
= 4 / 8
= 4 / 8 = 1 / 2
Hope it helps
Please mark me as the brainliest
Thank you
The probability that it is red is 1/2.
what is Probability?Probability refers to potential. A random event's occurrence is the subject of this area of mathematics.
The range of the value is 0 to 1. Mathematics has incorporated probability to forecast the likelihood of various events.
The degree to which something is likely to happen is basically what probability means.
Given:
A bag with 8 marbles
4 red marbles,
3 blue marbles,
and 1 yellow marble.
So, the probability that it is red
= 4 / ( 8)
= 1/2
Hence, the probability that it is red is 1/2.
Learn more about probability here:
https://brainly.com/question/11234923
#SPJ2
Can someone answer my question please if you know the answer
Answer choices:
F. 1/2
G. 2/5
H. 1/10
J. 3/5
Answer:
G. 2/5
add the total amount of bows then find out of that much how many are purple
Answer:
4/10 (2/5)
Step-by-step explanation:
Add all the bows together and then add ur number to the fraction.
EX: 1 blue bow, 6 purple bows, 6, pink bows what is the possibility to get a blue bow?
Add them all together, and then the denominator would be 13. So, there is one bow which means 1 in a 13 chance you will get the blue bow.
there are only two lines of symmetry in a circle true or false
Answer:False
Step-by-step explanation: a circle has infinite lines of symmetry an oval has two
!!!!!!!!!!Please help!!!!!!!
Answer:
It is the last one
Step-by-step explanation:
1 por 3) Jacksons buys a book for $12.85 and spends $5.89 for lunch. How much more did the book cost than lunch? *
Answer:
$6.96 more was the book than the lunch
Step-by-step explanation:
do cost of the book subtract the cost of the lunch forget the decimals and just subtract like normally. then at the end bring down the decimals, hope this helps