Answer:
The speed of George the Pigeon in still air = 21 miles/hr
The speed of air = 3 miles/hr
Step-by-step explanation:
Let the speed of George the Pigeon in still air = [tex]u[/tex] miles/hr
Let the speed of air = [tex]v[/tex] miles/hr
Distance traveled = 72 miles
Relative speed against the wind = [tex](u-v)[/tex] miles/hr
Time taken against the wind = 4 hours
Relative speed with the wind = [tex](u+v)[/tex] miles/hr
Time taken against the wind = 3 hours
Using the formula:
[tex]Speed = \dfrac{Distance}{Time}[/tex]
[tex]u-v=\dfrac{72}{4}\\\Rightarrow u-v=18 ..... (1)[/tex]
[tex]u+v=\dfrac{72}{3}\\\Rightarrow u+v=24 ..... (2)[/tex]
Adding (1) and (2):
[tex]2u=42\\\Rightarrow u = 21\ miles/hr[/tex]
By equation (1):
[tex]v = 21-18\\\Rightarrow v = 3\ miles/hr[/tex]
Therefore, the answer is:
The speed of George the Pigeon in still air = 21 miles/hr
The speed of air = 3 miles/hr
Find the length of JL
15
None of the other answers are correct
12
3
Answer:
D: 12
Step-by-step explanation:
The entire segment KI is composed of the segments KJ and JI. So:
[tex]KI=KJ+JI[/tex]
We know that KI is 15.
KJ is (2x-15) and JI is (2x-6). Substitute:
[tex]15=(2x-15)+(2x-6)[/tex]
Solve for x. Combine like terms:
[tex]15=4x-21[/tex]
Add 21 to both sides:
[tex]4x=36[/tex]
Hence, the value of x is:
[tex]x=9[/tex]
We know that JI is 2x-6.
We will substitute 9 for x to find JI. So:
[tex]JI=2(9)-6=18-6=12[/tex]
Hence, our answer is D.
Your beginning checkbook balance on Sunday morning is $417.83. On Monday you buy groceries for $189. 12 and purchase a meal on Thursday for
$27.98. You also make a deposit on Friday of $120.00. What should your balance be on Saturday morning?
Answer:
320.82
Step-by-step explanation:
An airplane takes three hours to travel a distance of 1320 miles with the wind the return trip takes four hours against the wind find the speed of the plane in still air and the speed of the wind
Answer:
106.6 mi/h, 26.6 mi/h
Step-by-step explanation:
PRIMERO SE CALCULA LE VELOCIDAD CON EL VIENTO QUIETO
v = [tex]\frac{320 mi}{3 h}[/tex] = 106.6 mi/h
DESPUÉS SE ENCUENTRA LA VELOCIDAD DEL AVIÓN EN CONTRA DEL
VIENTO
v = [tex]\frac{320 mi}{4 h}[/tex] = 80 mi/h
FINALMENTE SE ENCUENTRA LA VELOCIDAD DEL VIENTO
v = 106.6 mi/g - 80 mi/h = 26.6 mi/h
A child has a box full of colored building blocks. He will choose one block without looking. The odds against choosing a blue block are 5/12. What is the probability of choosing a blue block?
what is 485,783 rounded to its greatest place?
Answer:
486
Step-by-step explanation:
if you mean 485.782 with a decimal then it would be 486
Which graph represents a linear function
Answer:
A
Step-by-step explanation:
Answer:
The first Picture
Step-by-step explanation:
It is the only one with a staight line.
Can i have brainliest
Which conclusion is best supported by this graph? Most people paid about $300 for a new home in 2013. Most people can never afford to buy a home. Most people need to take out a mortgage to purchase a home. Most people pay back a loan for a home in a short period of time.
Answer:
C) Most people need to take out a mortgage to purchase a home.
Step-by-step explanation:
A snail can crawl at a rate of 6 cm in 0.75 minutes. Which represents the constant rate of change of the snail's crawl?
Answer:
0.00133m/sStep-by-step explanation:
Given
distance crawled by the snail = 6cm = 0.06m
Time taken = 0.75minutes = 0.75*60
Time taken = 45secs
Required
constant rate of change of the snail's crawl (speed)
Speed of the snail = distance/time;
Speed of the snail = 0.06/45
Speed of the snail = 0.00133m/s
Hence the constant rate of change of the snail's crawl in m/s is 0.00133m/s
Which inequality is shown in the graph below?
Answer:
B. y<2x-2
Step-by-step explanation:
Hope that helps!
Find the value of ƒ(5) if
Answer:
A) 19
Step-by-step explanation:
3(5) + 4 = 19
Hope this helps you
Answer:
19
/ 2(5)-7 = 10-7 = 3 . 3 <= 1 false
F(5)
\ 3(5)+4 = 15+4 + 19 . 19 > 0 true
ILL MARK U BRAINLEST OKAY!
Answer:
march
Step-by-step explanation:
the negatives are all lower then 0, hope this helps
Answer:
It's march.
Step-by-step explanation:
fhdryyyyyyyyyyyyetttttttttt
Answer:
fjkn QLJKFnclqnmjfn,msfjv
Step-by-step explanation:
Answer:
jsoanjcisnzocisjsncjhsjakznc aknxosjz
Step-by-step explanation:
hajxkfj snksksnc
IS MY ANSWER CORRECT ?? ASA IS THE WRONG ANSWER BTW
Answer:
yes
Step-by-step explanation:
7. If a rectangular den has an area of 68 3/4 square yards and one side
that's 8 1/4 yards long, how long is the other side? *
Answer:
26
Step-by-step explanation:
I 8 1/4 x 2 and I got 16 and 2/4 then I subtracted that and got 52 1/4 and then i divided it and got 26 so yh I dunno.
If 10% of the students in your class like sushi, how many students are in your class if 2 students like
sushi?
Answer: 20 people are in my class
Step-by-step explanation:
Answer:
20 Students
Step-by-step explanation:
10% would represent 1/10,
if 2 students like sushi we would multiply 2 on both sides of 1/10,
We will get 2/20, this represents the 2 people in the class that likes sushi
20 represents the total number of students therefore there are 20 students in your class
given: 10-x+3x=-4(x-4) prove: x=1 and i have to use proofs for each step ex:division property
Answer:
10+x+3x=-4(x-4)
10+2x=-4x+16
collect like-terms
2x+4x=16-10
6x=6
divide both by 6 to find the value of x
therefore, x is equal to 1
The Math Counts Club had a party at their school. There were 20 cookies and 40 slices of pizza to be shared equally. Each student had the same number of whole cookies and the same number of slices of pizza with nothing left over. How many students could have been at the party? LCM or GCF?
Answer:
2, 4, 10 or 20 studentsStep-by-step explanation:
Prime factors:
20 = 2*2*540 = 2*2*2*5Common factors of the two numbers:
2, 4, 10, 20Possible number of students as above
Micro Knowledge sells 5 times as many computers as Morse Electronics. The difference in sales between the two stores is 20 computers. How many computers did each store sell?
Answer:
Morse electronics sells 5 computers
Micro knowledge sells 25 computers
Step-by-step explanation:
The computation is shown below:
Let us assume the morse electronics computer be x
So the micro knowledge computers be 5x
And, the difference between them is 20
Now the equation is
5 x - x = 20
4x = 20
x = 5
Hence, the morse electronics sells 5 computers
While on the other hand the micro knowledge sells
= 5 × 5
= 25 computers
A stock price is $100. Volatility is estimated to be 20% per year. What is the an estimate of the standard deviation of the change in the stock price in one week?
Answer: if I’m correct the answer is $0.38
Step-by-step explanation:
The estimate of the standard deviation of the change in the stock price in one week is $2.77.
What is the standard deviation?It is defined as the measure of data disbursement, It gives an idea about how much is the data spread out.
We have:
Stock price = $100
Volatility = 20% ⇒ 0.20
We know the standard deviation of change in the stock price is given by:
[tex]\rm = \frac{stock \ price \times implied \ volatility \times \sqrt{days \ to \ change} }{\sqrt{365} }[/tex]
[tex]\rm = \frac{100\times 0.20\times\sqrt{7} }{\sqrt{365} }[/tex] (1 week = 7 days)
= 5.2343×0.20×2.646
= 2.7699 ≈ $2.77
Thus, the estimate of the standard deviation of the change in the stock price in one week is $2.77.
Learn more about the standard deviation here:
brainly.com/question/12402189
2. Last year, Springfield Middle School had 620
students. This year, it has 582 students. To the nearest
tenth, what is the percent of decrease?
A) 6.1%
B) 6.6%
C) 93.9%
D) 106.5%
What is 10/5.5 simplified
Answer:
1 81/99
Step-by-step explanation:
The answer is the mixed number 1 81/99. Hope it helps!
The fraction 10/5.5 with decimal denominator can be simplified to the lowest term as 20/11 or as a decimal 1.8181 approximately to four decimal place.
How to simplify the fraction with decimal denominatorTo simplify the fraction with decimal denominator, first convert the decimal to fraction and then use its reciprocal to multiply the numerator as follows:
5.5 = 55/10
so that the original fraction becomes;
10/5.5 = 10 ÷ 55/10
10/5.5 = 10 × 10/55 {the division become multiplication by multiplying the the numerator with the reciprocal of the denominator}
10/5.5 = 100/55
10/5.5 = 20/11
or
10/5.5 = 1.8181 as a decimal.
Therefore, the fraction with decimal denominator can be simplified to the lowest term as 20/11 or as a decimal 1.8181 approximately to four decimal place.
Read more about fraction here:https://brainly.com/question/30154928
#SPJ6
Select the expression that is equivalent to 4-3i
Answer:
5
Step-by-step explanation
Answer:
The answer is D: 5
Sally is making 15 individual blueberry cheesecakes. How many pounds of blueberries will be in each cheesecake it 5 and 1/4 pounds of blueberries
Answer:
.35lbs or 7/20lbs
Step-by-step explanation:
if 5 1/4 lbs of blueberries are being distributed evenly through 15 cheesecakes, you would divide 5 1/4 by 15 to see how many lbs of blueberries would be in each cheesecake, which would make .35 lbs of blueberries per cheesecake, or 7/20 lbs.
The number of pounds of blueberries will be in each cheesecake should be .35lbs or 7by 20lbs
The calculation is as follows;
When 5 1 by 4 lbs of blueberries are being distributed evenly through 15 cheesecakes,
So, here we have to divide 5 1 by 4 by 15 i.e.
[tex]= 5\frac{1}{4} \div 15[/tex]
= 0.35 lbs
Learn more: https://brainly.com/question/1301963?referrer=searchResults
HELP ON ALL QUESTIONS!! *repost* NO ONE IS HELPING ME ILL GIVE 56 POINTS
Answer:
2. 8 * 3 - 10 = 14
3. 9 * 2 - 10 = 0
4. 5 - 15 = -10
5. 0.5 * 40 = 20
Part 3.
1. 0.25x + 30.00= 59.50
You have 118 text messages
2. 21.50x = 129
You can buy 6 pizza pies with your money
Hope these are right!!!!
Question 3
Find the measure of the angle indicated by the ?
Answer:
C. 75 degrees
Step-by-step explanation:
160°-85°=75°
Answer:
C
Step-by-step explanation:
180 - 160 = 20
85 + 20 = 105
180 - 105 = 75
Solve the system
X-2y+2z=9
-x+3y=-4
2x-5y+3z=16
the answer:
x=1
y= -1
z= 3
A tv is 37 inches long and the width is 12 inches how tall is the tv?
Answer:
35 inches
I hope this helps!
A line passes through the points (4,17) and (7,20). Write a linear function rule in terms of x and y
for this line.
The linear function rule is y=?
Answer:
The linear function rule is [tex]\mathbf{y=x+13}[/tex]
Step-by-step explanation:
A line passes through the points (4,17) and (7,20). Write a linear function rule in terms of x and y
for this line.
The function rule is of form: y=mx+b
Where m is slope and b is y-intercept
Finding slope using formula: [tex]Slope=\frac{y_2-y_1}{x_2-x_1}[/tex]
We have [tex]x_1=4, y_1=17, x_2=7, y_2=20[/tex]
Putting values and finding slope
[tex]Slope=\frac{y_2-y_1}{x_2-x_1}\\Slope=\frac{20-17}{7-4}\\Slope=\frac{3}{3}\\Slope=1[/tex]
Finding y-intercept b
Using the point (4,17) to find y-intercept b
[tex]y=mx+b\\17=1(4)+b\\17=4+b\\b=17-4\\b=13[/tex]
So, the linear function rule is:
[tex]y=mx+b\\y=1x+13\\\mathbf{y=x+13}[/tex]
The linear function rule is [tex]\mathbf{y=x+13}[/tex]
A line passes through the points (4,17) and (7,20).
The linear function rule is y= 1x+13
Given :
A line passes through the points (4,17) and (7,20).
The linear function is y=mx+b where m is the slope
lets find out slope using formula
[tex]m=\frac{y_2-y_1}{x_2-x_1} \\(4,17) and (7,20)\\m=\frac{20-17}{7-4}=1 \\[/tex]
Slope of the line using the given points is 1
Lets pick any one point (4,17) and use slope to find function rule y
y=mx+b
x is 4 and y is 17 and m=1
[tex]17=1(4)+b\\17=4+b\\17-4=b\\13=b[/tex]
Replace the value of 'b' and write the equation
[tex]y=mx+b\\y=1x+13[/tex]
The linear function rule is y= 1x+13
Learn more : brainly.com/question/20850886
write the equation of a line whose slope is -4 and that passes through the point (-2,9)
-2/3 x 3/4
Please help!
Answer:
-1/2
Step-by-step explanation:
Answer:
-9/8.
Step-by-step explanation:
-3/2 * 3/4
= -3*3 / 2*4
= -9/8.