Answer:
60 paid once and 2 dollars paid per class 60+2x=amount paid
60+2(12)
60+24
$84
Step-by-step explanation:
Can someone explain this step by step please
Answer:
x = - 2
y = 6
Step-by-step explanation:
The best way to do this is to put - 3x in for y in the second equation.
4x - 2(-3x) = - 20 Watch the signs. You have 2 minus signs.
4x - - 6x = -20 Change - - 6x to 6x
4x + 6x = - 20 Add
10x = - 20 Divide by 10
x = -20/10
x = - 2
============================
Find y
y = - 3x
y = -3 * -2
y = 6
Round your answer to the nearest tenth if necessary. Use 3.14 for it.
A drum has a diameter of 26 inches and is 19 inches deep. Find the volume of his drum.
The volume of this drum is approximately
in.
Answer:
volume = 10,082.5 in³
Step-by-step explanation:
radius = 26/2 = 13
volume = πr²L = (3.14)(13²)(19) = 10,082.54 in³
I need this question really badly
Answer:
yeah same for me but with ice cream
The price of tire is $45.50. The store marks it Up 60%. What is the total?
Answer:
$72.80
Step-by-step explanation:
1.) Find 60% of 45.50
0.60 * 45.50 = 27.3
2.) Add this to the cost
27.30 + 45.50 = 72.80
What is it in standard form
Answer: 7x - y = 17
Step-by-step explanation:
Answer:
Standard 7x-y=17 or Slope Intercept y=7x-17
Step-by-step explanation:
I am between 2 and 10. I am a mixed number. I am closer to 8 than 4 if you take my fraction part away. I am an odd number what am i
I am 6 1/9 Hope this helps
Find the missing side of the right triangle where c is the hypotenuse and a and b are
legs. Round your answer to one decimal place.
a = 11 m
c = 15 m
Answer: 10.2
Step-by-step explanation:
b = 15² - 11²
= 225 - 121
= 104
= √104
= 10.2
Need answer fast!!!!
How to add 12.50, 18.50, 20, 20, 13, 12
Answer:
96
Step-by-step explanation:
12.50 + 18.50 + 20 + 20 + 13 + 12 = 96
Mel begins playing video games at the time on the left clock. If she stops playing video games at the time on the right clock, how many minutes did Mel spend playing video games?
Answer:
See Explanation
Step-by-step explanation:
The question is incomplete, as the required clocks are not given.
To answer this question, I will give an illustration of how to calculate the difference between times.
Note that: I assume you can read the time on a clock
Assume that:
[tex]Left\ clock = 2:15pm[/tex]
[tex]Right\ clock = 3:05pm[/tex]
The difference is calculated as:
[tex]Difference = Right\ clock - Left\ clock[/tex]
[tex]Difference = 3:05pm - 2:15pm[/tex]
From 2:15pm to 3:05pm is 50 minutes.
So:
[tex]Difference = 50\ minutes[/tex]
Another assumption:
[tex]Left\ clock = 2:15pm[/tex]
[tex]Right\ clock = 3:32pm[/tex]
The difference is calculated as:
[tex]Difference = Right\ clock - Left\ clock[/tex]
[tex]Difference = 3:32pm - 2:15pm[/tex]
For ease of calculation, we split the time to 2.
(1) From 2:15pm to 3:15pm
(2) From 3:15pm to 3:32pm
(1) From 2:15pm to 3:15pm: This is 1 hour
(2) From 3:15pm to 3:32pm: This is 17 minutes (i.e. 32 - 15)
So, the difference is:
[tex]Difference = 1hr + 17min[/tex]
[tex]Difference = 1\ hour\ 17minutes[/tex]
Someone plz help giving brainliest if someone else answers
Answer:
7.833 yards²
Step-by-step explanation:
I can't take a pic but heres a link that does the math for you and explains. The top of the rectangular prism btw is called the surface area
https://www.omnicalculator.com/math/surface-area-rectangular-prism
rekitha arekitha kandaralu
Answer:
khing chong
Step-by-step explanation:
Thalia's next class is 8 units to the right and 5 units down on the map from where she is now. In what room is Thalia's next class? Find the ordered pair that represents the location of that room.
Answer: (6,-4) music
Step-by-step explanation:
A train is spotted 10 miles south and 8 miles west of an observer at 2:00 pm. At 3:00 pm the train is spotted 5 miles north and 16 miles east of the observer. a. How far did the train travel in the first hour? b. If the train continues at this pace where will it be in relation to the observer at 5:00 pm? Write a function that will give the train's position at any given time c. d. At 2:00 pm a cyclist is traveling due east and is next to the observer. If the cyclist is traveling at 10 mph, do they collide with the train when the bike goes over the train tracks?
Answer:
a. The distance the train travelled in the first hour is approximately 28.3 miles
b. The location of the train at 5:00 p.m. is 53 miles east, and 46 miles west
c. The location of the train at any given time by the function, f(t) = (-8 + 24·t, -10 + 15·t)
d. The train does not collide with the cyclist when the bike goes over the train tracks
Step-by-step explanation:
a. The given information on the train's motion are;
The location south the train is spotted = 10 miles south and 8 miles west
The time the observer spotted the train = 2:00 pm
The location the train is spotted at 3:00 p.m. = 5 miles north and 16 miles east
Therefore, the difference between the two times the train was spotted, t = 3:00 p.m. - 2:00 p.m. = 1 hour
Making use of the coordinate plane for the two locations the train was spotted, we have;
The initial location of the train = (-10, -8)
The final location of the train = (5, 16)
Therefore the distance the train travelled in the first hour is given by the formula for finding the distance, 'd', between two points, (x₁, y₁) and (x₂, y₂) as follows;
[tex]d = \sqrt{\left (x_{2}-x_{1} \right )^{2}+\left (y_{2}-y_{1} \right )^{2}}[/tex]
Therefore;
[tex]d = \sqrt{\left (5-(-10) \right )^{2}+\left (16-(-8) \right )^{2}} = 3 \cdot\sqrt{89}[/tex]
The distance the train travelled in the first hour, d = 3·√89 ≈ 28.3 miles
b. The speed of the train, v = (Distance travelled by the train)/Time
∴ v ≈ 28.3 miles/(1 hour) = 28.3 miles per hour
The speed of the train in the first hour, v ≈ 28.3 mph
The direction of the train, θ, is given by the arctangent of the slope, 'm', of the path of the train;
[tex]\therefore The \ slope \ of \ the \ path \ of \ the \ train, \, m =tan(\theta) = \dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]
∴ m = tan(θ) = (5 - (-10))/(16 - (-8)) = 0.625
c. Distance = Velocity × Time
At 5:00 p.m., we have;
The time difference, Δt = 5:00 p.m. - 3:00 p.m. = 2 hours
The distance, d₁ = (28.3 mph × 2 hours = 56.6 miles
Using trigonometry, we have the horizonal distance travelled, 'Δx', in the 2 hours is given as follows;
Δx = d₁ × cos(θ)
∴ Δx = 56.6 × cos(arctan(0.625)) ≈ 48
The increase in the horizontal position of the train, relative to the point (5, 16), Δx ≈ 48 miles
The vertical distance increase in the two hours, Δy is given as follows;
Δy = 56.6 × sin(arctan(0.625)) ≈ 30
The increase in the vertical position of the train, relative to the point (5, 16), Δy ≈ 30 miles miles
Therefore; the location of the train at 5:00 p.m. = ((5 + 48), (16 + 30)) = (53, 46)
The location of the train at 5:00 p.m. = 53 miles east, and 46 miles west
c. The function, 'f', that would give the train's position at time-t is given as follows;
The P = f(28.3·t, θ)
Where;
28.3·t = √(x² + y²)
θ = arctan(y/x)
Parametric equations
y - 5 = 0.625·(x - 16)
∴ y = 0.625·x - 10 + 5
The equation of the train's track is therefore, presented as follows;
y = 0.625·x - 5
d = 28.3·t
The y-component of the velocity, [tex]v_y[/tex] = 3*√89 mph × sin(arctan(0.625)) = 15 mph
Therefore, we have;
y = -10 + 15·t
The x-component of the velocity, vₓ = 3*√89 mph × cos(arctan(0.625)) = 24 mph
Therefore, we have;
x = -8 + 24·t
The location of the train at any given time, 't', f(t) = (-8 + 24·t, -10 + 15·t)
d. The speed of the cyclist next to the observer at 2:00 p.m., v = 10 mph
The distance of the cyclist from the track = The x-intercept = 5/0.625 = 8
The distance of the cyclist from the track = 8 miles
The time it would take the cyclist to react the track, t = 8 miles/10 mph = 0.8 hours
The location of the train in 0.8 hours, is f(0.8) = (-8 + 24×0.8, -10 + 15×0.8)
∴ f(0.8) = (11.2, 2)
At the time the cyclist is at the track along the east-west axis, at the point (8, 0), the train is at the point (11.2, 2) therefore, the train does not collide with the cyclist when the bike goes over the train tracks.
If the cyclist is travelling at 10 mph the train does not collide with the cyclist when the bike goes over the train tracks.
The location south the train is spotted = 10 miles south and 8 miles west
The time the observer spotted the train = 2:00 pm
The location of the train is spotted at 3:00 p.m. = 5 miles north and 16 miles east
Thus, the difference between the two times the train was spotted,
t = 3:00 p.m. - 2:00 p.m. = 1 hour
What is the distance?The distance is the product of velocity and time.
Distance = Velocity × Time
The initial location of the train = (-10, -8)
The final location of the train = (5, 16)
Therefore the distance the train travelled in the first hour
[tex]d = \sqrt{(x_{2} -x_{1} )^{2} +(y_{2} -y_{1} )^{2} } \\d = \sqrt{(5 -(-10) )^{2} +(16-(-8) )^{2} }[/tex]
d = 3√89
The distance the train travelled in the first hour, d = 28.3 miles
b. The speed of the train, v = (Distance travelled by train)/Time
∴ v ≈ 28.3 miles/(1 hour) = 28.3 miles per hour
The speed of the train in the first hour, v ≈ 28.3 mph
The direction of the train, θ, is given by the arc tangent of the slope, 'm', of the path of the train;
∴ m = tan(θ) = (5 - (-10))/(16 - (-8))
m = 0.625
c. Distance = Velocity × Time
At 5:00 p.m., we have;
The time difference, Δt = 5:00 p.m. - 3:00 p.m. = 2 hours
The distance, d₁ = (28.3 mph × 2 hours = 56.6 miles
Using trigonometry, we have the horizontal distance travelled, 'Δx', in the 2 hours is given as follows;
Δx = d₁ × cos(θ)
∴ Δx = 56.6 × cos(arctan(0.625)) ≈ 48
The increase in the horizontal position of the train, relative to the point (5, 16), Δx ≈ 48 miles
The vertical distance increase in the two hours, Δy is given as follows;
Δy = 56.6 × sin(arctan(0.625)) ≈ 30
The increase in the vertical position of the train, relative to the point (5, 16), Δy ≈ 30 miles miles
Therefore; the location of the train at 5:00 p.m. = ((5 + 48), (16 + 30)) = (53, 46)
The location of the train at 5:00 p.m. = 53 miles east, and 46 miles west
c. The function, 'f', that would give the train's position at time-t is given as follows;
The P = f(28.3·t, θ)
28.3·t = √(x² + y²)
θ = arctan(y/x)
Parametric equations
y - 5 = 0.625·(x - 16)
∴ y = 0.625·x - 10 + 5
The equation of the train's track is, therefore, presented as follows;
y = 0.625·x - 5
d = 28.3·t
The y-component of the velocity,
= 3 × √89 mph × sin(arctan(0.625)) = 15 mph
Therefore, we have
y = -10 + 15·t
The x-component of the velocity,
vₓ = 3 × √89 mph × cos(arctan(0.625))
= 24 mph
Therefore, we have;
x = -8 + 24·t
The location of the train at any given time, 't',
f(t) = (-8 + 24·t, -10 + 15·t)
d. The speed of the cyclist next to the observer at 2:00 p.m., v = 10 mph
The distance of the cyclist from the track = The x-intercept
= 5/0.625 = 8
The distance of the cyclist from the track = 8 miles
The time it would take the cyclist to reach the track, t = 8 miles/10 mph = 0.8 hours
The location of the train in 0.8 hours, is f(0.8)
= (-8 + 24×0.8, -10 + 15×0.8)
∴ f(0.8) = (11.2, 2)
therefore, If the cyclist is travelling at 10 mph the train does not collide with the cyclist when the bike goes over the train tracks.
Learn more about distance;
https://brainly.com/question/15172156
Tamia is getting balloons for her father's birthday party. She wants each balloon string to be 6 feet long. At the party store, string is sold by the yard. If Tamia wants to get 59 balloons, how many yards of string will she need?
Answer:
118 yards
Step-by-step explanation:
Tamia is getting balloons for her father's birthday party
She wants each balloon to be 6 feet long
Tamia wants to get 59 balloons
Therefore the yards of string needed can be calculated as follows
= 59×6
= 354 feet to yards
= 118 yards
Hence the number of yards needed is 118 yards
URGENT!!!!!!!! PLEASE HELP ASAP TIMED!!!!!!!!!!!!!!! HELP!!!!!!!!!!!!!!!!!
Answer:
Height of building = 86.9 ft
Step-by-step explanation:
I've drawn a triangle image to depict this question and I have attached it.
From the attached image, we can see that ABC is the height of the building.
We can see the distance from your eye to the ground indicated and also the distance from the horizontal distance from the building to you indicated.
We can use pythagoras theorem to find AB.
AB/57 = tan 55°
AB = 57 × 1.4281
AB = 81.4 ft
Now, total height of the building is AB + BC.
BC = 5.5 ft since B is parallel to your eye and height from there to the ground is 5.5 ft.
Thus;. Height of building = 81.4 + 5.5 = 86.9 ft
Find the surface area of a number cube if the height is 3cm.
I'll give brainliest
Answer:
54 unit sq
Step-by-step explanation:
Answer:
54 i think
Step-by-step explanation:
Can anyone help me with this math question please I will give brainlist!!
Answer:
b. (6, 4)
Step-by-step explanation:
i hope this helps :)
Answer:
B. (6,4)
Step-by-step explanation:
The point is inside the triangle.
Find (gºf)(3)
f(x) = |x+ 2|
g(x) = -x?
a. -25
b. 1
C. 4
d. -15
Please select the best answer from the choices provided
A
B
C
D
Answer:
A. -25
Step-by-step explanation:
sana nakatulong :-)
It is less than 100 greater than 10 and you use a total of 7 base ten blocks to show this number the number of tens blocks is greater than the number of ones blocks one of the digits is 4
Answer:
77
Step-by-step explanation:
Is this a trick question? If it is I love the challenge
The value of the number is 43
What is an Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the number be = A
Now , let the ones digit of the number be = x
Let the tens digit of the number be = y
Now , the equation will be
The number of ten blocks = 7 base ten blocks
So , the equation is
x + y = 7
Now , one of the digits is 4
And , number of tens blocks is greater than the number of ones blocks
So , the next digit of the number is 3
4 > 3
Therefore , the number from the equation is 43
Hence , The value of the number is 43
To learn more about equations click :
https://brainly.com/question/19297665
#SPJ5
3(x+4)=-18 Please go step by step!
Answer:
hi
Step-by-step explanation:
3(x+4)=-18
3 × X + 3× 4=-18
3x+12=-18
3x=-18-12
3x= -30
x= -30/3
x= -10
hope it helps
have a nice day
I cant do this please help me i will give brainliest
Answer:
Here, I graphed this especially for you.
Check attachment.
Probability that the next baby born at a hospital will be a boy
LOOK AT THE PICTURE!! I REALLY NEED HELP SOMEONE PLEASE HELP ME OUT
Answer: B
Step-by-step explanation: Hope this help :D
i need help plzzzzzzzzzzzzzzzzzzzzzzzzzzzz
Answer:
The answer is 7
Step-by-step explanation:
Q11-4=7
Hope this helped!!!
b is two-fifth of c
4a = 3c
work out the ratio a:b:c
give your answer in its simplest form where a,b and c are integers
Answer:
8a:15b:6c
a:b:c = 8:15:6
Let K and T be the current ages of siblings, Katie and Thomas. Katie is currently twice the age of Thomas. In 6 years, Katie will be 4 times Thomas’s current age. How old are Katie and Thomas?
(a) Write a system of equations to describe the situation.
(b) Find the solution to the system and answer the question.
WILL MARK FIRST ANSWER AS BRAINLIEST!!!
Answer:
(a) K = 2T
K + 6 = 4T
(b) 2T + 6 = 4T
6 = 4T - 2T
6 = 2T
6/2 = 2T/2
T = 3
When T = 3, K = 6
A gym membership costs for $40 for each month.
The cost of the membership for 12 months will be
Answer:
$480
Step-by-step explanation:
40 × 12 = 480
fine the missing side lengths for x and y
Answer:
Letter A is the answer pls
9514 1404 393
Answer:
[tex]x=\dfrac{4\sqrt{3}}{3};\ y=\dfrac{8\sqrt{3}}{3}[/tex]
Step-by-step explanation:
The side ratios of a 30°-60°-90° triangle are ...
1 : √3 : 2
In your triangle, they are ...
x : 4 : y
In order to get these values, we need to multiply the reduced ratio by 4/√3 = (4√3)/3. Then we have ...
x : 4 : y = (4√3)/3 : 4 : (8√3)/3
and we can see that ...
x = (4√3)/3y = (8√3)/3What is mU?
A. 17
B. 29
C. 46
D. 134
Answer:
I think its A
Step-by-step explanation:
because it's a tighter angle than 29,46,and 134 degrees i might not be right but i hope it is :)