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
Orlov [11]
3 years ago
12

If the sum of a number and one is doubled, the result is four less than the number. Find the number

Mathematics
1 answer:
TEA [102]3 years ago
5 0

Answer:

-6

Step-by-step explanation:

Let the number be 'x'

Sum of a number and one = x + 1

Sum of a number and one is doubled = 2*(x +1) = 2*x + 2*1 = 2x + 2

Four less than the number = x - 4

2x + 2 = x - 4

Subtract 'x' from both sides

2x - x + 2 = x - x - 4

x + 2 = -4

No, subtract 2 form both sides

x + 2 -2 = - 4 - 2

x = -6

You might be interested in
How do you compare and contrast decimals, fractions, and percents
Alisiya [41]
You would have to make them all one form that is the same, for example if you wanted to find out if 80%, 0.75, 1/2 are the same you would have to change them into the same form. If you wanted to make them all decimals it would be 0.08, 0.75, 0.5, if you wanted to make them all percents it would be 80%, 75%, 50%, you wanted them all of be a fraction it would be 4/5, 3/4, and 1/2. I hope explained this well and this helped :)
-Madi
6 0
3 years ago
Find all the real zeros of <br><br> f(x)=3x^3-9x^2+3x-9 <br><br><br> Can someone help me please
vaieri [72.5K]

Answer:

x=0,3

Step-by-step explanation:

start by dividing every term by 3

x^3-3x^2+x-3

group into 2 terms

(x^3-3x^2)+(x-3)

simplify as much as you can

x^2(x-3)+(x-3)

combine terms

(x^2)(x-3)

x=3, 0

4 0
3 years ago
13 more than a number​
liberstina [14]

Answer:

x+13

Step-by-step explanation:

x +13

x: the number

7 0
3 years ago
Read 2 more answers
Please help with this question algebra 1
leva [86]

Answer:

Examples for the problem would be:

1) Robert started to run out of his house as fast as he can
2) But he slowed down when he met up with his friends
3) They then stopped at a park along the way
4) After stopping at the park, they ran the rest of the way to school hoping they wouldn't be late.
or
1) Robert met with his friends right outside his house and raced them to the next block
2) After Robert won, they all walked normally to the park
3) They then stopped at the park for a quick break
4) After realizing class was gonna start in a few minutes, they ran as fast as they could to school

Step-by-step explanation:

For the first part, you want Robert to be running at a normal running speed, such as him racing his friends or just running.
For the second part you want him to be walking at a slower pace.
For the third part you want them to not be moving
For the fourth part, you'll explain how/why they're moving so fast since the graph shows that he ran fastest at this time.

8 0
2 years ago
Triangle GHI, with vertices G(-8,-8), H(-6,-7), and I(-9,-2),
Anna35 [415]

Answer:

area = 6.5 square units

Step-by-step explanation:

Use the <em>area of a triangle in coordinate geometry</em> formula:

\triangle GHI =\frac{1}{2} |x_1(y_2- y_3) + x_2(y_3 -y_1) + x_3(y_1 -y_2)|

where (x_1,y_1)=(-8,-8) \ \ \ \ (x_2,y_2)=(-6,-7) \ \ \ \ (x_3,y_3)=(-9,-2)

      \triangle GHI =\frac{1}{2} |x_1(y_2- y_3) + x_2(y_3 -y_1) + x_3(y_1 -y_2)|

\implies \triangle GHI =\frac{1}{2} |-8(-7+2)  -6(-2 +8)  -9(-8 +7)|

\implies \triangle GHI =\frac{1}{2} |40  -36 +9|

\implies \triangle GHI =6.5

3 0
2 years ago
Other questions:
  • Y = 4
    5·2 answers
  • Which liner function represents the line given by the points-slope equation y-8=1/2(x-4)?
    8·1 answer
  • What does the notation f prime of x mean?
    11·1 answer
  • Alexander is a stockbroker. He earns 14% commission each week. Last week, he sold $6,400 worth of stocks. How much did he make l
    9·1 answer
  • a tank holds 5000 gallons of water, which drains from the bottom of the tank in half an hour. The values in the table show the v
    14·1 answer
  • Consider the steps to convert 49% to a decimal.
    6·2 answers
  • Name two ways you can figure out an area of a composite figure.
    14·1 answer
  • HELP!! I NEED THIS ASAP!!!​
    7·1 answer
  • The shelf life of a particular dairy product is normally distributed with a
    6·1 answer
  • A square piece of plastic has a perimeter of 8 cm. how long is each side of the piece of plastic?​
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!