1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vichka [17]
1 year ago
4

Help please!!!!!!!!!!!

Mathematics
1 answer:
klasskru [66]1 year ago
6 0

Answer:

522 1/2  revolutions

Step-by-step explanation:

First convert 13 3/4 into improper fraction

13 3/4 = (13 x 4 + 3)/4 = 55/4

Since these many revolutions are made in 1 minute, to find total number of revolutions made in 38 minutes, simply multiply 55/4 x 38

==> 55/4 x 38 = (55 x 38)/4 = 2090/4

Divide by 2 both numerator and denominator

==> (2090 ÷ 2)/(4 ÷ 2) = 1045/2 = 522 1/2

You might be interested in
Can somebody please help me with this math ?
torisob [31]
3:2 because 18/12 and 30/20 both reduce to 3/2
7 0
3 years ago
In the following activity, write an equation to represent each verbal statement, and use it to find the value of each unknown nu
Julli [10]

The solution values in order from smallest to largest are;

  • -13 - First
  • -10 - Second
  • -3.5 - Third
  • -2 - Fourth
  • -0.75 - Fifth

<h3>Unknown equation</h3>

let

  • the unknown number = x

(x - 5)-2 = 14

-2x + 10 = 14

-2x = 14 - 10

-2x = 4

x = 4/-2

x = -2

4x - 5 = -8

4x = -8 + 5

4x = -3

x = -3/4

x = -0.75

(x + 3) / 5 = -2

x + 3 = -2(5)

x + 3 = -10

x = -10 - 3

x = -13

1/2x + 4 = -1

1/2x = -1 - 4

1/2x = -5

x = -5 ÷ 1/2

= -5×2/1

x = -10

x + 2 = 6/-4

-4(x + 2) = 6

-4x - 8 = 6

-4x = 6 + 8

-4x = 14

x = 14/-4

x = -3.5

Therefore, the smallest value is -13 and the largest value is -0.75.

Learn more about unknown equation:

brainly.com/question/12247728

#SPJ1

6 0
2 years ago
The total source voltage in the circuit is 6-3i V. What is the voltage at the middle source
Bezzdna [24]

Answer:

<em>The voltage at the middle source is</em> (2-4\mathbf{i})\ V

Step-by-step explanation:

<u>Voltage Sources in Series</u>

When two or more voltage sources are connected in series, the total voltage is the sum of the individual voltages of each source.

The figure shown has three voltage sources of values:

2 + 6\mathbf{i}

a + b\mathbf{i}

2 - 5\mathbf{i}

The sum of these voltages is:

V_t=4+a+(6+b-5)\mathbf{i}

Operating:

V_t=4+a+(1+b)\mathbf{i}

We know the total voltage is 6-3\mathbf{i}, thus:

4+a+(1+b)\mathbf{i}=6-3\mathbf{i}

Equating the real parts and the imaginary parts independently:

4+a=6

1+b=-3

Solving each equation:

a = 2

b = -4

The voltage at the middle source is (2-4\mathbf{i})\ V

5 0
3 years ago
Help me with this please!!​
qaws [65]

Answer:

Yes; K= -2 and y=-2x

Step-by-step explanation:

1+2=3

3+2=5

8 0
3 years ago
A movie theater sells adult tickets for $6 each. Senior citizens receive a discount of $3. One evening the theater sold 400 tick
Andrej [43]

Answer:

Number of senior citizen tickets sold= 110

Number of adults tickets sold= 290

Step-by-step explanation:

<u>First, we need to establish a system of equations:</u>

x= number of adults tickets

y= number of senior citizen tickets

x + y= 400

6x + 3y= 2,070

<u>Now, we isolate x in one equation and substitute the value in the other:</u>

x= 400 - y

6*(400 - y) + 3y = 2,070

2,400 - 6y + 3y = 2,070

330 = 3y

110 = y

Number of senior citizen tickets sold= 110

Number of adults tickets sold= 290

<u>Prove:</u>

290 + 110= 400

6*290 + 3*110= 2,070

6 0
3 years ago
Other questions:
  • Write an expression to describe each sequence.Then find the 10th term. -18,-36,-54,-72...
    11·1 answer
  • Identify the slope and y-intercept of the graph of the equation. y = 1/4x + 3
    5·1 answer
  • Marisol bought 2 7/8 pounds of bananas, a 3 1/2 pound bag of apples, and 2 bags of oranges that each weighed 2 3/4 pounds. How m
    7·1 answer
  • The radius of a coin is 12 mm what is the diameter of the coin what is the circumference of the coin what is the area of the coi
    12·1 answer
  • What is 7 3/8 + 2 1/8
    14·2 answers
  • Utiliza la notacion cientifica, las propiedades de las potencia y la calculadora para obtener el resultado de las siguientes ope
    7·1 answer
  • Pls help (9th honors geo - circles)
    6·1 answer
  • Help me ASAP on these problems!!Use the diagram and given information to find the given length
    11·1 answer
  • Solve for k <br> -6(k+1)=-3-(6k+3)
    7·2 answers
  • Here's more for ya :D Lol sorry
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!