Answer:
Tom has $27
while John $17
Ben has $12 John has 5 more
12 + 5 = 17
Tom has 10 more than John
17 + 10 = 27
An airline has two flights each day from City A to City B. A random sample of 10 morning flights left the gate an average of 15 minutes late with a standard deviation of 5 minutes. A random sample of 10 evening flights left the gate an average of 20 minutes late with a standard deviation of 3 minutes. Suppose both the morning and evening flights are 30 minutes late. To determine which flight is more late than usual, first find the z-scores. Round to one decimal place if necessary.
Answer:
Step-by-step explanation:
Let X denote the random variable that obeys the normal distribution.
Given that:
For morning flights
Mean [tex]\mu_1[/tex] = 15
standard deviation [tex]\sigma_1[/tex] = 5
Sample size [tex]n_1[/tex] = 10
[tex]X_1 \sim Normal ( \mu_1, \sigma _1)[/tex]
The Z - score is calculated as:
[tex]Z = \dfrac{x_1 - \mu_1}{\sigma_1}[/tex]
[tex]Z = \dfrac{30 -15}{5}[/tex]
[tex]Z = \dfrac{15}{5}[/tex]
Z = 3
For evening flights
Mean [tex]\mu_2[/tex] = 20
standard deviation [tex]\sigma_2[/tex] = 3
Sample size [tex]n_2[/tex] = 10
[tex]X_2 \sim Normal ( \mu_2, \sigma _2)[/tex]
[tex]Z = \dfrac{x_2 - \mu_2}{\sigma_2}[/tex]
[tex]Z = \dfrac{30 -20}{3}[/tex]
[tex]Z = \dfrac{10}{3}[/tex]
Z = 3.33
Hence, from the above z-scores, we will realize that the evening flight is more late than usual.
-38=-2(n+6)+6(3n+1) Can you please solve marking branlest show work
Answer:
n = -2
Step-by-step explanation:
-38 = -2n -12 +18n +6
-38 =16n -6
-38 +6 =16n
-32= 16n
n=-2
...... help lots of points available (plz answer it)
slope = 2; y-intercept = -1
HELP PLS what's the answer
Answer:
The question is incomplete but I assume you want to find the equation of a straight line with those details. Well the equation of a straight line is y=mx+c where m is the slope and c is the y-intercept
Therefore y=2x-1 is the equation of the line
Answer:
y=2x-1
Step-by-step explanation:
BRAINLIEST PLSSS
Determine the value of x in the figure.
A) x=70
B) x=140
C) x=40
D) x=35
Answer:
Yep it's C) 40°
Step-by-step explanation:
and rest one is 70°
What is the slope of a line containing (4,6) and (0,8)?
Answer:
[tex]m=\frac{-1}{2}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASAlgebra I
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Point (4, 6)
Point (0, 8)
Step 2: Find slope m
Substitute: [tex]m=\frac{8-6}{0-4}[/tex]Subtract: [tex]m=\frac{2}{-4}[/tex]Simplify: [tex]m=\frac{-1}{2}[/tex]Answer:
Slope is -1/2
Step-by-step explanation:
y2 - y1/x2 - x1
8 - 6/0 - 4
2/-4
-1/2
Write a polynomial function that has the given zeros.
1/2, 1 , 5
Answer:
1
Step-by-step explanation:
x²-1²...it can be written as (x+1),(x-1)...surely you will get -1 and 1 as your zero
Find each number 60% of 45
Answer:
27
Step-by-step explanation:
[tex]60\%\ of\ 45\\=\frac{60}{100} *45\\=\frac{60}{20}*9\\=3*9\\=27[/tex]
What is the difference between speed and velocity
Answer:
Speed is during an action and velocity is built up when your using speed in a direction
Step-by-step explanation:
Yesterday the temperature was 11°C. Today it is -11°C. In degrees Celsius, what is the change in
temperature?
The table above shows the number of hours that Robin worked each week for 5 weeks. What would be the number of hours Robin worked in days?
PLEASE HELPPPPP♥️♥️♥️♥️♥️♥️
893.76 divided by 0.21
Answer:
4.265
Step-by-step explanation:
893,76/ 0,21= 4.265
50 POINTS !!! Imogen bought i number of invitations to send out for her party. After she sent out 19, she was left with 11. What is the
value of ?
O 8
O 11
19
30
Answer:
Step-by-step explanation:
Just add 19 and 11 and you will get your answer!
HOPE THIS HELPS!
Answer:
da answer is 30
Step-by-step explanation:
The function g(x) is a transformation of f(x). If g(x) has a y-intercept of -2, which of the following functions could represent g(x)?
A. g(x) = f(x) - 5
B. g(x) = f(x - 5)
C. g(x) = f(x) - 2
D. g(x) = f(x + 2)
Answer:
A.
Step-by-step explanation:
It just is trust
Here is a table of values for y = f(x).
Х
0 5 10 15 20 25 30 35 40
f(x) 5 6 7
8
9
10 11
12 13
Mark the statements that are true.
A. f(15) = 8
✓ B. The range for f(x) is all real numbers.
✓ C. f(5) = 6
I D. The domain for f(x) is the set {5, 6, 7, 8, 10, 11, 12, 13).
the complete question in the attached figure
statements
case A) f(15)=8-----> is correct
for x=15
f(x)=8
case B) the domain of f(x) is the set {5,6,7,8,10,11,12,13}--> is not correct
because the domain of f(x) is the set {0,5,10,15,20,25,30,35,40}
case C) f(5)=6-----> is correct
for x=5
f(x)=6
case D) the range for f(x) is all real numbers----> is not correct
because
the range of f(x) is the set {5,6,7,8,9,10,11,12,13}
the answer is
A and C
It takes 3/4 of an hour to paint 3/5 of a room how long does it take to paint one room
Answer:
1 1/4 hours
Step-by-step explanation:
.75/.6=x/1
cross multiply
.75=.6x
divide by .6
x=1.25 hours
(I didn't write this awnser it was written by
Katieg3593 I just thought I would share the awnser).
What is 569 divided by 67.8
Answer: 8.39233038348
Step-by-step explanation:
Answer:
8.39233038348
Step-by-step explanation:
569/67.8=8.39233038348
How do I solve this equation and check the solutions?
Answer:
The value of x is 10.
Step-by-step explanation:
The steps to do this :
[tex]x - \sqrt{2x + 5} = 5[/tex]
[tex]x - 5 = \sqrt{2x + 5} [/tex]
[tex] {(x - 5)}^{2} = {( \sqrt{2x + 5}) }^{2} [/tex]
[tex] {x}^{2} - 10x + 25 = 2x + 5[/tex]
[tex] {x}^{2} - 12x + 20 = 0[/tex]
[tex] {x}^{2} - 2x - 10x + 20 = 0[/tex]
[tex]x(x - 2) - 10(x - 2) = 0[/tex]
[tex](x - 2)(x - 10) = 0[/tex]
[tex]x = 2 \: (rejected)[/tex]
[tex]x = 10[/tex]
Can somebody plz answer both questions! only if u done it before thanks!
WILL MARK BRAINLIEST WHOEVER ANSWERSS:DD
Answer:
48% is A and since i like quarters more than nickels and dimes its c for 30
Step-by-step explanation: Because I said so.
Answer:
To calculate the average you must add the percentages up and divide by the number of percentages. So, 52+28+34+95+16+63=288/6=48. The percentage is 48%.
For the second questions you take 100 divide by 3 since there are 3 coins and you get an 33.3%. But, since you can't have 0.3 of a coin. So, since you started with a nickel, you would end with a nickel giving you a percentage of 34% and the dimes and quarters a percentage of 33% each.
HELPPPPPPPPPPP
WHAT IS 67+8,900+12+14+15????
Answer:
9,008
Step-by-step explanation:
67 + 12 = 79
14 + 15 = 29
79 + 29 = 108
8,900 + 108 = 9,008
plz mark me brainliest
Answer:
9008
Step-by-step explanation:
67+8,900= 8967
8967+12= 8979
8979+14 = 8993
8993+15=9008
does anyone know how to do this
Write a linear equation to represent this
Explain the difference between the slopes of x=1 and y=1, I need answers ASAP!!!!!
Answer:
Step-by-step explanation:
x=1 is a vertical line, that has an undefined slope, while y=1 is a horizontal line that always has a zero slope
A sculpting tool is in the shape of a solid triangular prism. The tool is made of 12 in.3 of metal and is 4 in. Long. What is the height of the base if it is 2 in. Wide?
Answer:
The height of the base if it is 2 in. Wide is 3 inches
Step-by-step explanation:
Volume of rectangular prism = [tex]\frac{1}{2} \times Length \times Base \times Height[/tex]
Volume of given rectangular prism = [tex]12 in^3[/tex]
Length of prism = 4 in
Base of prism = 2 in
Substitute the values in formula
So, [tex]12 = \frac{1}{2} \times 4 \times 2 \times Height[/tex]
[tex]\frac{12 \times 2}{4 \times 2}=Height[/tex]
3 = Height
Hence the height of the base if it is 2 in. Wide is 3 inches
Answer:
3 inches
Step-by-step explanation:
If two angles are both obtuse, the two angles are equal. What is the converse??
Answer:
If the angles are equal, then two angles are both obtuse
Step-by-step explanation:
converse flips the conclusion and hypothesis
Does anybody know the answer to this question please I need help?!
Answer:
Juan earns 10 dollars a week at his job
Step-by-step explanation:
Marco buys a certain brand of shampoo for $7.25 plus 7.5% tax. How much will Marco pay in total for the shampoo? (Round your answer to the nearest hundredth)
Answer:
$6.35
Step-by-step explanation:
Answer:
$7.79
Step-by-step explanation:
7.25 + 7.25(0.075)
7.25 + ~0.54
7.79
What is the first step in evaluating (12.9 – 3.1) × 6.2 – 2 + 43
Answer:
101.76
Step-by-step explanation:
Answer:
(12.9 - 3.1) i'm in middle school so if i can do it you can
Step-by-step explanation:
What is the solution set?
(2, 0)
(7, 0)
(0, -2)
(5, 3)