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
marysya [2.9K]
2 years ago
5

Solve the proportion

Mathematics
1 answer:
Vinvika [58]2 years ago
3 0

Answer:

1.  (3/2)

2. (20)

3. (3)

4. (-9/5)

5. (-8/7)

6. (-2/3), (4)

Step-by-step explanation:

1.                          2.                        3.                          4.

x         3                   12         3               x           1                x + 3        3

/    =    /                     /     =    /                /    =      /                   /     =     /

4         8                   x           5              9           x                   2           5

8x = 12                    60 = 3x                  x² = 9                      5x + 15 = 6

÷8    ÷8                   ÷3    ÷3                   x = √9                          -15     -15

                                                                                                5x = -9

x = (3/2)                   x = 20                  x = 3                           ÷5    ÷5

                                                                                                  x = (-9/5)

5.                             6.

4 - x          3                   1               x - 3

  /       =     /                   /        =        /

 12            7              2x + 1               9

28 - 7x = 36                   9 = 2x^2 - 5x - 3

-28         -28                 + 3                    + 3

                                     12 = 2x^2 - 5x

-7x = 8                          -12                   -12

÷-7   ÷-7

                                       2x^2 - 5x - 12 = 0

x = (-8/7)                      

                                       -b +-√b^2 - 4ac

                                                     /                = -(-5)√-5^2 - 4 (2)(-12)

                                                    2a                                /

                                                                                      2(2)

                                             

                                          = 5-+√121        5 - 11        -6

                                                 /         =        /       =    /       = (-2/3)

                                                -4                 4             4

                                                            =     5 + 11          16

                                                                       /      =       /    = (4)

                                                                      4              4

I hope this helps!

You might be interested in
To create a graph from an equation, evaluate the function at different ______. Use the input-output pairs to identify and plot _
Vikki [24]

Answer:

do you have a picture?

Step-by-step explanation:

6 0
3 years ago
How do i get x 0.15x+45=150
crimeas [40]
Subtract 45 on each side so it would be
0.15X=104 then divide both sides by 0.15X

then X= 700
3 0
3 years ago
Which is an equation of the line that passes through (–1, –5) and (–3, –7)
mestny [16]

Answer: y=x-4

Step-by-step explanation: The y value is exactly x minus four.

4 0
3 years ago
Need help will give you the brainliest
natali 33 [55]

Answer:

164,160 just do 96% of it

7 0
3 years ago
Read 2 more answers
What is 685 ÷ 49 in long division?
34kurt
The answer to 685 divided by 49 = 13.979
3 0
3 years ago
Read 2 more answers
Other questions:
  • Can someone help me find the domain
    10·2 answers
  • Is this comparison true 5.14<5.041
    5·2 answers
  • in 1950, the U.S. federal budget was $39.4 billion, in 2000, the federal budget was $2025.2 billion. The exponential function is
    11·1 answer
  • 1. Point A(-5,8) is reflected across the line y = x. What are the coordinates of A'? Show your work and explain.
    13·1 answer
  • The rectangle shown has a perimeter of 38 cm and the given area. Its length is 4 more than twice its width. Write and solve a sy
    14·1 answer
  • Refer to the table above. Which event is independent of gender?
    5·1 answer
  • Mark and his friends order two pizzas of the same size .•The first pizza is cut into 6 slices of equal size .•The second pizza i
    10·1 answer
  • Parallel and perpendicular lines ​
    11·1 answer
  • HYRIGH fararefant et fanter i In a class of 25 student,
    8·1 answer
  • Robin, Ashley, Joy, and Christina collected 156 acorns to make fall decorations. Robin collected three times as many acorns as A
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!