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
Tamiku [17]
3 years ago
8

How can I do this exercise?

%202%7D" id="TexFormula1" title="\frac{-2}{12} = \frac{x + 1}{x + 2}" alt="\frac{-2}{12} = \frac{x + 1}{x + 2}" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
matrenka [14]3 years ago
3 0

Answer:

-8/7 =x

Step-by-step explanation:

-2         x+1

----- = -----------

12         x+2

Using cross products

-2 (x+2) = 12 (x+1)

Distribute

-2x -4 = 12x+12

Add 2x to each side

-2x+2x -4 = 12x+2x+12

-4 = 14x +12

Subtract 12 from each side

-4-12 = 14x

-16 = 14x

Divide each side by 14

-16/14 =14x/14

-8/7 =x

You might be interested in
The ratio of the angles in a triangle is 2:3:5. Find the measure of each angle. Measurements are all in degrees.
Julli [10]
Angles in a triangle add up to be 180 degrees. 2x+3x+5x= 180
10x=180
x=18
2(18) = 36
3(18) = 54
5(18)= 90
8 0
2 years ago
What is 3 3/8+ 5/12=_____.Plz tell me!
soldi70 [24.7K]

Answer:

3 19/24

Step-by-step explanation:

6 0
3 years ago
Dont mind my ripped paper but if someone could answer #14 for me that would be great! thank you!
poizon [28]

Answer:

I believe the answer is brand D

8 0
3 years ago
Read 2 more answers
Using a six-sided die, you have rolled a 6 on each of four successive tosses. What is the probability of rolling a 6 on the next
ollegr [7]

Answer:

The probability of rolling a 6 on the next toss = 1/6

Step-by-step explanation:

Given - Using a six-sided die, you have rolled a 6 on each of four successive tosses.

To find - What is the probability of rolling a 6 on the next toss?

Proof -

As the outcomes of previous rolls do not affect the outcomes of future rolls.

And there is one desired outcome and six possible outcomes.

So,

The probability of rolling a six on the fifth roll = 1/6 which is same as the probability of rolling a six on any given individual roll.

So,

The answer is -

The probability of rolling a 6 on the next toss = 1/6

8 0
3 years ago
Does anyone know how to do this
Scilla [17]

Answer:

7 {x}^{2}  + 28x - 35 = 0

7 {x}^{2}  + 35x - 7x - 35 = 0

7x(x + 5)  - 7(x + 5) = 0

(x + 5)(7x - 7) = 0

(x + 5)(x - 1)  = 0

3 0
3 years ago
Read 2 more answers
Other questions:
  • Pentagon CRAFT has coordinates c(-2,1) r(-5,2) a(-6,7) f(-3,9) and t(-1,6) and is dilated by a scale factor of 2/3 at the origin
    12·1 answer
  • Find the Vertex of 2x^2+8x+1<br> A. (-2,-7)<br> B.(1,7)<br> C.(-2,-1)<br> D.(3,-4)
    15·1 answer
  • 2.) Suppose y varies directly with x, and y= 10 when x= -3. What direct variation equation relates x and y? What is the value of
    9·1 answer
  • Need help on number 6!!!!
    8·1 answer
  • What percent of a meter is 3 cm
    15·2 answers
  • HELP I NEED HELP ASAP
    7·1 answer
  • The rectangles shown below are similar.
    10·2 answers
  • PICTURE HELPPP!!!!! <br><br> Please please please
    10·1 answer
  • Please help !!!!! I need to pass
    12·1 answer
  • Rachel used 2.8 cups of sugar to make 2 cherry pies. How much sugar, on average, did she put in each pie?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!