Shelly and Steve buy prepaid phone
cards so they can call home from
summer camp. Shelly buys 150 minutes
for $30. Steve buys 200 minutes for
$42. Who is the person getting the
better deal?
Answer:
Steve
Step-by-step explanation:
steve is buying 200 minutes which is more than 150 minutes
Hope i helped :) :) :)
Jonathan drives 845 miles in 5 hours. What is his average rate of speed in miles per hour?
Answer:
ok so it is 169
Step-by-step explanation:
ok i hope this is correct i used a calculator so sorry if its wrong all i did was divide some stuff
if its correct can u give me the crown
if u dont want to thats alright
i divided 845 and 5 and got 169
Find the geometric mean of 24 and 45.
The geometric mean of 24 and 45 is equal to 32.86.
Given the following data:
Numbers = 24 and 45.What is geometric mean?Geometric mean is an average value that is used to indicate the central tendency of a data set containing a group of numbers, especially by determining the product of their values.
Mathematically, geometric mean is given by this formula:
[tex]G=\sqrt[n]{x_1x_2...x_n}[/tex]
Substituting the given parameters into the formula, we have;
[tex]G = \sqrt[2]{24 \times 45} \\\\G = \sqrt{1080}[/tex]
G = 32.86.
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What is the value of n in the equation below?
Answer:
wheres the question?......
Answer:
What is the equation?
Equation...? where....?
Solve the inequality for x.
-3x + 6 > 48
A)
x < -14
B)
X<-18
C)
X > -14
D)
X > -18
Write the following mixed number as an improper fraction.
1 1/5
Answer:
6/5
Step-by-step explanation:
1 would equal 5/5 so add another 1 to get 6/5
The value of a car decreases by 5% each year. Sophie bought a car two years ago for £10000. Work out the value now.
Given:
The value of car before two years = £10000
The value of the car decreases by 5% each year.
To find:
The present value of the car.
Solution:
The exponential decay model for present value is
[tex]y=a\left(1-\dfrac{r}{100}\right)^t[/tex]
Where, a is the initial value, r is the rate of decay and t is time in years.
Putting P=10000, r=5 and t 2, we get
[tex]y=10000\left(1-\dfrac{5}{100}\right)^2[/tex]
[tex]y=10000\left(1-0.05\right)^2[/tex]
[tex]y=10000\left(0.95\right)^2[/tex]
On further simplification, we get
[tex]y=10000(0.95)(0.95)[/tex]
[tex]y=9025[/tex]
Therefore, the present value of the car is £9025.
A music collection includes 19 ROCK CDs, 12 COUNTRY CDs, 6 CLASSICAL CDs, and 5 HIP HOP
CDs. What is the probability that a CD randomly selected from the collection IS a classical CD?
Answer:
The probability is 6/42. If you need it simplified it's 1/7.
Step-by-step explanation:
If it's wrong please let me know :)
how do i find the values of x and y that make the quadrilateral a parallelogram
The values of x and y that make the quadrilateral a parallelogram are, X = 25 & Y = 15
What is quadrilateral?Quadrilateral are the type of polygon who has 4 sides, on the basis of length and angle between sides we can further classify quadrilateral into following categories;
for example, Rectangle, Square, Parallelogram, Rhombus, Trapezium
Given that,
A parallelogram whose all the angles are,
(4x + 13)°, (4y + 7)°, (3x - 8)°, (5x - 12)°
It is known that,
Opposite Interior angles of parallelogram are equal
so,
⇒ (4x + 13) = (5x - 12)
⇒ x = 25
⇒ (4y + 7) = (3x - 8)
⇒ 4y + 7 = 75 - 8
⇒ 4y = 60
⇒ y = 15
Hence, the values of x and y are respectively 25, 15
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Alguien que me ayude a calcular la medida de un angulo central interno y externo de un heptagono { interno y externo]
Responder:
suma de ángulos interiores = 900 °
Suma de ángulos exteriores = 360 °
Explicación paso a paso:
Un heptágono es un polígono de 7 lados:
Para cualquier polígono con n lados:
El ángulo exterior del polígono suma 360 °
Por lo tanto, la medida de cada ángulo central de un heptágono es:
Suma de ángulos exteriores / número de lados
360 ° ÷ 7
= 51,43 °
El ángulo interior de un polígono se obtiene mediante la relación:
(n - 2) 180 °
Heptágono tiene 7 lados:
(7 - 2) 180 °
5 (180 °)
= 900 °
Por tanto, suma de ángulos interiores = 900 °
Suma de ángulos exteriores = 360 °
The volume of this cone is 36π cubic units.
What is the volume of a cylinder that has the same base area and the same height(in pi)? Need ASAP, due soon
Answer:
108pi
Step-by-step explanation:
We do not need to know the height and radius, as the formula for the volume of a cone is just a third of the volume of a cylinder. So we have 36pi * 3 or 108pi.
what is the answer to the question -6=n+5n
Answer:
-1=n I believe would be the answer.
Tom has a 4-sided spinner and the table below shows the probabilities
that when the spinner is spun it will land on 1, 3 and on 4
Number
1
2
3
4
Probability
0.1
0.2
0.4
The spinner is spun once.
a) What is the probability that the spinner will land on 2?
Il
(1)
b) Which number is the spinner least likely to land on?
(1)
c) If Tom spins the spinner 80 times, work out an
estimate for the number of times the spinner will land on 3
(2)
Answer:
0.3
Step-by-step explanation:
it's the only one not there
Graph a line with a y-intercept of 3 and containing the point (2, 5).
To graph a line, plot two points on the line.
Answer:
Step-by-step explanation:
Plz help. You need to wright an equation and solve it.
To rent a car is $25 per day plus a fee of $50. Gil rented a car for $250. How many days did he rent the car?
Answer: 8 days
Step-by-step explanation: There is only one fee of 50 dollars. 250-50=200
Divide 200 by 25 to get the number of days.
Evaluate
h(x) = 17+ x/6
H(-18)=
Can someone please help me on this question and show the work if you can?
Answer:
it is a 60 30 90 triangle so basically 2y is = x
21² + y² = x²
441 + y² = x²
y = x/2 (2y = x)
441 + x²/4 = x²
4x² = 1764 + x²
3x² = 1764
x = exact is 24.248711306 simplied square root would just be 14√3
2y = 14√3
y = 7√3
exact wouldd be 12.124355653
The markings on the number line are evenly spaced. Label the other markings on the number line.
Answer:
A= -75
B= -60
C= -45
D= -15
E= 15
F=30
Step-by-step explanation:
Each point is 15 away, so you just add or subtract 15 based off of if it's a negative or positive number on the number line.
Hope this helped!
What is -5 more than 2?
Step-by-step explanation:
no 2 is more than -5 because 2 is positive but -5 is negative
Months, x
1
2
3
4
5
# of people, y
18
36
72
144
288
I) Write an exponential function to model the number of people using a social media outlet after x months.
II) Using your formula above, predict the number of people using a social media outlet after 6 months.
x+3>70
Please helpp plzzzzzz
Answer:
x>67
So basically what you do is subtract 3 from each side :)
help me please I need
Answer:
I think the answer is A=49
Graph the image of the figure using the transformation given.
(its multiple choice!)
The original image undergoes reflection across x=-3.
What is Graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points.
In the given graph DEFG is the original image.
D'E'F'G' is the new image after the transformations applied.
A reflection is defined by the axis of symmetry or mirror line. In the above diagram, the mirror line is x = -3.
Under reflection, the shape and size of an image is exactly the same as the original figure.
This type of transformation is called isometric transformation.
Hence, the original image undergoes reflection across x=-3.
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$420 is divided between A, B and C. B receives $20 less than A, and C receives half as much as A and B together. how much does each receive?
Also could you explain the answer?
Answer:
A = $150
B = $130
C = $140
Step-by-step explanation:
Let the amount received by a be $x
b receives $20 less than a;
we have that;
b = x - 20
c receives half of Sum A and B
c = (x + x-20)/2
c = (2x-20)/2
c = x - 10
Add all and it gives 420
x - 10 + x -20 + x = 420
3x -30 = 420
3x = 420 + 30
3x = 450
x = 450/3
x =$150
a = 150
b = x - 20; 150 - 20 = 130
c = x-10
c = 150-10
c = $140
Solve for x.
2x - x = 19
X =
Answer:
Step-by-step explanation:
All you gotta do is add similar elements
2x - x = 19
x=19
A factory robot recently examined some bulbs, of which 4 were flawed and 26 were not. Considering this data, how many flawed bulbs would the robot be expected to find in a batch of 15 bulbs?
Answer:
2
Step-by-step explanation:
Given that:
Flawed bulbs = 4
Not flawed = 26
Total examined = (flawed + not flawed)
Total examined = (4 + 26) = 30
P(flawed) = flawed / total
P(flawed) = 4 / 30 = 0.1333333
If 15 is examined :
Expected number of flawed bulbs :
(4/30) * 15 = 2
What is the reciprocal 1/5. im very confused
Answer:
5/1
Step-by-step explanation:
The reciprocal is just flipping the fraction!
Cristal had $157 in her checking account. She then made a deposit of $160. Find her new account balance.
Answer:
$317
deposit: add
157+160= 317
what is 8333333333/100000000000 simplified? It might be hard but I need help and it's for tonight. Thanks!
i will really appreciate it if you guys could help me out .
Answer: he owes him 3 cents
Step-by-step explanation:
Answer:
3$
Step-by-step explanation:
you got to do 8 minus 5.