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
lozanna [386]
3 years ago
10

When two times a number is decreased by 3 the result is 11 what is the number

Mathematics
2 answers:
sergiy2304 [10]3 years ago
5 0

Hi there!

Let's replace "a number" by "x":

- two times x = 2x

- decreased by 3 = -3


Here's what the equation should look like:

2x - 3 = 11


Now that you have written down your equation, all you have to do now is solve it for "x" by isolating it :

2x - 3 = 11

Add 3 on each side of the equation

2x = 14

Divide each side of the equation by 2

x = 7


Your answer is: The number is 7.


There you go! I really hope this helped, if there's anything just let me know! :)

Paraphin [41]3 years ago
4 0

2x - 3 = 11

Solve:

2x = 14

x = 7

The answer is 7

You might be interested in
Given \tan A = \frac{7}{{24}}, find the cos B
Natali5045456 [20]

We are given

tan(A)=\frac{7}{24}

we know that

tan(A)=\frac{opposite}{adjacent}

so, we get

opposite =7

adjacent=24

now, we can find hypotenuse

hypotenuse=\sqrt{7^2+24^2}

hypotenuse=25

now, we can draw triangle and then switch vertices accordingly

we can find cos(B) using second triangle

cos(B)=\frac{adjacent}{hypotenuse}

In second triangle:

adjacent=7

hypotenuse =25

so, we get

cos(B)=\frac{7}{25}................Answer

8 0
3 years ago
The following table shows the number of classes that
Tresset [83]

Answer:

There are 6 classes we find the median by finding the middle number of the 3rd highest class and 4th highest class, even if this is a decimal.

6/3 = 3+ 0.5

The process would be different if some values are the same values already on the chart total of each class.

ie) 20  31  14  22 20 31

small data like this below you can rearrange

14  20  20  22  31 31  

and see that 21 is the correct value

as there are even numbers, so we choose 20 , 22

and select the middle value = 21

Step-by-step explanation:

If there is an even number of numbers locate the two middle numbers so that there is an equal number of values to the left and to the right of these two numbers. Step 3: If there is an odd number of numbers, this middle number is the median. If there is an even number of numbers add the two middles and divide by 2.

7 0
3 years ago
You buy 6 apples for $33. WHat is the cost of 10 pounds of apples
Mariana [72]
10 lbs of apples will cost $55 

How? Well...

First, you would need to find the unit rate, which is 5.5
You find the unit rate by simply dividing 33 by 6. Next, after you found your unit rate, you're going to multiply that by 10. We now know that 10 x 5.5= 55. Therefore, you will need $55 for 10 lbs of apples.
5 0
3 years ago
1. Write the slope-intercept form of the equation that passes through the point (0, 1) and is parallel to the line y = 3x - 5
gregori [183]

Answer:

y = 3x + 1

Step-by-step explanation:

If two lines are parallel to each other, they have the same slope.

The first line is Y = 3X - 5. Its slope is 3. A line parallel to this one will also have a slope of 3.

Plug this value (3) into your standard point-slope equation of y = mx + b.

y = 3x + b

To find b, we want to plug in a value that we know is on this line: in this case, it is (0, 1). Plug in the x and y values into the x and y of the standard equation.

1 = 3(0) + b

To find b, multiply the slope and the input of x (0)

1 = 0 + b

Now, add 0 to both sides to isolate b.

1 = b

Plug this into your standard equation.

y = 3x + 1

This equation is parallel to your given equation (y = 3x - 5) and contains point (0, 1)

Hope this helps!

3 0
3 years ago
PLEASE HELP SHAWTYYY
Serjik [45]

Answer:

Vertical

x=49

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Jill collects stamps. Her stamp book has space for 64 stamps. She needs 18 more stamps to fill the book. How many stamps does Ji
    9·1 answer
  • 5. Determine whether each of the following statements is true or false a. 1 + 1 = 3 if and only if monkeys can fly. b. If birds
    10·1 answer
  • A bag contains 10 white gumballs and 12 orange gumballs.
    5·2 answers
  • How many degrees in the angle
    5·2 answers
  • An architect is designing a deck. It will
    9·1 answer
  • write an equation for a function that has a graph with the shape of y=x^2, but upsidedown and shifted right 6 units and up 4 uni
    14·1 answer
  • PLZ HELP!!!! WILL MARK BRAINLEST IF CORRECT
    7·1 answer
  • Help me please!!!!! and thank you!
    11·1 answer
  • PLEASE HELP I WILL MARK YOU BRAINISLEST AND GIVE YOU 14 POINTS
    7·2 answers
  • Graph the system of equations on graph paper to answer the question.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!