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
faltersainse [42]
3 years ago
10

21. What is the value of x if 5:(3x+2) = 7:(5x-2).A. 6B. 5C.7.​

Mathematics
1 answer:
KatRina [158]3 years ago
6 0

Answer:

5/(3x+2) = 7/(5x-2)

<=>5*(5x-2) = 7*(3x+2) (x is not equal to -3/2 or 2/5)

<=> 25x -10 = 21x +14   (x is not equal to -3/2 or 2/5)

<=> 4x = 24                   (x is not equal to -3/2 or 2/5)

<=> x = 6 (valid)

You might be interested in
A. 3/13<br><br> B. 10/39<br><br> C. 5/12<br><br> D. 8/13
ELEN [110]
The equation to find P(A and B) is P(A and B)= P(A) x P(B/A). P(B/A) stands for probability of B given A. First we need to find out the P(A). The P(A) is 8/13 because you have 13 marbles total and 8 white marbles. For P(B/A), it is 5/12. This is because there are 5 red marbles and given that A happened, there would only be 12 marbles left in the bag, leaving you with a 5/12 chance of getting a red marble. Now plug it in. 8/13 x 5/12 = 40/156, which simplifies down to 10/39. Thus, B is the answer.
4 0
3 years ago
I think of a number, double it and add 14. The result is 36. What is the number?
never [62]

Answer:

11

Step-by-step explanation:

11*2=22, 22+14=36, quick maths

4 0
3 years ago
Read 2 more answers
How do I find B??????
yulyashka [42]

The graph shown below can be described using the equation y=Acos(bx)=k. Which of the following is the value of B +K.

I typed ur questions and this cite with problems came up. I believe ur answer is the following of ur question. Hope this helped. :)

13

4 0
3 years ago
Sonia earned $2,100 at her uncle's orchard. If she worked for 70 weeks and earned the same amount of money each week, how much d
Drupady [299]

Answer:

30

Step-by-step explanation:

She earned 30$ a week(Brainlyest?)

7 0
2 years ago
Read 2 more answers
What is the equation of this line in standard form? −8x+7y=25 −9x+8y=−23 −8x+9y=−23 −8x+9y=23
kvasek [131]
<span>−8x+7y=25 is already in standard form, altho some people would prefer to re-write it as

</span><span>−8x+7y-25 = 0.

You have shared 4 equations here.  Next time, please separate them with commas or semi colons, or type just 1 equation per line, for increased clarity.  Thanks.</span>
5 0
3 years ago
Other questions:
  • Ms. Johnson has a box of 60 red and black pens on the shelf. If the ratio of red to black pens is 2 to 3, how many red pens does
    10·2 answers
  • Which equations have a value less than 6,766? A. one fourth x 6,766 = ________ B. 6 x 6,766 = ________ C. one half x 6,766 = ___
    14·1 answer
  • ANSWER ASAPPPPP PLSS
    10·1 answer
  • What are the factors of 42??
    11·1 answer
  • HEY HERE IS THE NEXT QUESTION
    8·2 answers
  • I need help is it A B C or D
    11·1 answer
  • A light bulb consumes 3600 watt-hours per day how long it takes to consumes 17100watt- hours
    12·1 answer
  • I need to find the length
    15·1 answer
  • Someone help me pleaseeee
    10·1 answer
  • . To sketch y = -x?, reflect the graph of x? across:
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!