MATHEMATICS MIDDLE SCHOOL

Mr.Kent teaches 7 classes that are each 50 minutes long.he Lao has a 30-minute lunch break.how much time does mr.kent spend teaching class and at lunch?

Answers

Answer 1
Answer: 7*50+30 which equals 380
Answer 2
Answer:

Answer:

380 minutes

Step-by-step explanation:

7*50 = 350  + 30 = 380 minutes

Related Questions

NY Newsstand has an annual payroll of $288,000. What is the FICA for NYNewsstand?A. $22,032B. $76,500C. $25,684O D. $28,800
–0.8b2+7.4b+(5.6b–0.2b2)
A shoe box is 6 inches wide, 11 inches long, and 5 inches high. what is the volume of the box
Jamie has 3 times as many pencils as pens. She has at least 18 pencils. How many pens does Jamie have?
What is the slope of the line shown below?10(6,2)10 (-2,-3)1010-OA.olmOB.LOCOO c.D.O100Helpppppp

50 POINTS! Vectors u, v, and w are shown in the graph. What are the magnitude and direction of u + v + w? Round the magnitude to the thousandths place and the direction to the nearest degree.

Answers

Answer:

C)  48.786, 152°

Step-by-step explanation:

To add the vectors u, v and w, we first need to rewrite each vector in component form (where vectors are represented using the unit vectors i and j along the x and y axes).

The (x, y) components of a vector, given its magnitude (r) and direction (θ), are (r cos θ, r sin θ), where θ is measured in the anticlockwise direction from the positive x-axis.

Every vector in two dimensions is made up of horizontal and vertical components, so any vector can be expressed as a sum of i and j unit vectors. Therefore, the i + y form of a vector is:

  • (r cos θ) i + (r sin θ) j

So, the component form of the given vectors are:

\mathbf{u}=80 \cos 230^(\circ)\textbf{i}+80 \sin 230^\circ}\textbf{j}

\mathbf{v}=60 \cos 120^(\circ)\textbf{i}+60 \sin 120^\circ}\textbf{j}

\mathbf{w}=50 \cos 40^(\circ)\textbf{i}+50 \sin 40^\circ}\textbf{j}

Sum the vectors:

\mathbf{R}=\mathbf{u}+\mathbf{v}+\mathbf{w}\n\n\mathbf{R}=(80 \cos 230^(\circ)+60 \cos 120^(\circ)+50 \cos 40^(\circ))\textbf{i}+(80 \sin 230^\circ}+60 \sin 120^\circ}+50 \sin 40^\circ})\:\textbf{j}\n\n\mathbf{R}=-43.1207866\:\textbf{i}+22.8173493\:\textbf{j}

\textsf{For a vector\;\;$\mathbf{a} = x\mathbf{i} + y\mathbf{j}$, its magnitude is\;\;$||\mathbf{a}|| = √(x^2+y^2)$.}

Calculate the magnitude of the resultant vector ||R||:

\mathbf{||R||}=√((-43.1207866)^2+(22.8173493)^2)\n\n\mathbf{||R||}=48.7855887...\n\n\mathbf{||R||}=48.786

The direction θ can be found by finding the angle with the horizontal, which is given by:

\boxed{\theta=\tan^(-1)\left((y)/(x)\right)}

As the resultant vector is in quadrant II (since the i component is negative and the j component is positive), we need to add 180° to the value of tan⁻¹(y/x). Therefore:

\theta=\tan^(-1)\left((22.8173493)/(-43.1207866)\right)+180^(\circ)

\theta=-27.8855396+180^(\circ)

\theta=152.114460^(\circ)

\theta=152^(\circ)\; \sf (nearest\;degree)

Therefore:

  • Magnitude = 48.786
  • Direction = 152°
The answer is c :48.786; 152°

A television cost $375 it is on sale for 25% off and there a 6.5% sales tax

Answers

25% of $375 is:
$375* (25/100)= $93.75.

The cost of the television after sale off and before the sales tax is:
$375- $93.75= $281.25

The sales tax is:
$281.25* (6.5/100)= $18.28

The price of the television including everything is:
$281.25+ $18.28= $299.53

Hope this helps~
A television costs 375 dollars.It is on sale for 25% and there’s a sales tax of 6.5%Let’s calculate to get the answer.Original Price = 375 dollarsLet’s add the 6.5% sales tax=> 6.5% = 6.5 / 100 = 0.065=> 375 * 0.065 = 24.375=> 375 + 27.375 = 399.375Let’s subtract the 25% discount=> 25% = 25 / 100 = .25=> 399.375 * .25 = 99.84375=> 399.375 - 99.84375 = 299.53.Thus the new price of the television is 299.53 with the sales tax and discount.

What is the area of the figure?

_____ cm^2

Answers

You can find the area of this figure by finding the area of the square and then the area of the triangle. Once you find these 2 areas then add them together.

For the area of the square:
A= b x h
A = 4 cm x 6 cm
A = 24 cm²

For the area of the triangle:
A = b x h/2
A = 3 cm x 6 cm/2
A = 9 cm²

Total area = 24 cm² + 9cm²
Total area = 33 cm²

2. A bag contains 2 red, 3 blue and 5 green marbles. Mike picks one marble from the bag, Then picks a second without replacing the first marble. What is the probability that mike picks a red marble and then a green marble?
A. 1/20
B. 1/10
C. 1/9
D. 7/10

3. Which of these best describes dependent events?
(choose ALL corrects answerS)
A. Spinning the arrows of two spinners with 3 equal sections two times
B. Randomly selecting a piece of candy from a bad containing 4 red, 2 yellow, and 1 green piece of candy, eating it, And then picking another piece of candy
C. Randomly selecting a team member to be captain, and then randomly selecting another team member to be co-captain.
D. Randomly selecting a sock from a drawer containing 8 black, 4 blue, and 3 brown pairs of socks, replacing it, and selecting another sock.

Answers

2) 2/10 is the probability of picking red. 5/9 is the chance of picking green the second time because one marble has been taken out. Multiply the probabilities together and should get the answer 1/9

3) I think B, C, D but C ,might not be right
the probability is 1/10 and the third question would be b. c. and d.

Consider the following system of equations: y = 5x + 6 y = −x − 7 Which description best describes the solution to the system of equations? Line y = 5x + 6 intersects line y = −x − 7.
Lines y = 5x + 6 and y = −x − 7 intersect the x-axis.
Lines y = 5x + 6 and y = −x − 7 intersect the y-axis.
Line y = 5x + 6 intersects the origin.

Answers

 y = 5x + 6
y = −x − 7 

5x + 6 = -x - 7
6x + 6 = -7
6x = -13
x = -13/6

y = 5(-13/6) + 6
y = -29/6

The solution is (-13/6, -29/6) and that tells us that the two ines do not intersect at the origin or any of the two axis. If they intersected at the origin, then the solution should have been (0, 0). If they intersected at the x-axis, the solution should have been (x, 0). If the two lines intersected at the y-axis, the solution would have been (0, y).

The answer is A) Line y = 5x + 6 intersects line y = −x − 7.

Answer:

The answer is A. Line y = 5x + 6 intersects line y = −x − 7.

Hope This Helps!

This is 5th grade work if you needed to know

Answers

To find volume multiply base times width times height. 
The dimensions of the fridge is 36 x 35 x 70. 
Multiply 36 x 35 to get 1260. 
Multiply 1260 x 70 to get 88200. 
The volume of the fridge is: 88,200 cubic inches. 
Hope this helps!

Answer:

88,200 cubeic in.

88,200 = volume

Step-by-step explanation:
Other Questions
The quadratic equation x^{2}-6x=12 is rewritten in the form (x+p)^2=q, where q is a constant. What is the value of p ?
Can the sum of two mixed numbers be equal to 2?Explain why or why not.
Any nonzero integer divided by 0 equals 0
What is the quotient of 5.4 and -0.3