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
Dvinal [7]
3 years ago
12

3/a x - 4 = 20. x equals -2

Mathematics
1 answer:
Taya2010 [7]3 years ago
3 0

Answer:

\Large \boxed{a=\frac{-1}{4} }

Step-by-step explanation:

\displaystyle \frac{3}{a} \cdot x - 4 = 20

Let x = -2.

\displaystyle \frac{3}{a} \cdot (-2) - 4 = 20

Solving for a.

\displaystyle \frac{-6}{a}- 4 = 20

Adding 4 to both sides.

\displaystyle \frac{-6}{a} = 24

Multiplying both sides by a, then dividing both sides by 24.

\displaystyle \frac{-6}{24} = a

Simplifying.

\displaystyle \frac{-1}{4} = a

You might be interested in
It’s asking for the area<br> Please help! Thank you!
Eddi Din [679]

Answer: x^2+9x+20

Step-by-step explanation:

To find the area you multiply the sides so it should be (x+4)(x+5) which is x^2+9x+20. Good luck!

6 0
3 years ago
Claire makes hot coco with 2 cups of milk with 5 tablespoons of coco. How many tablespoons of coco would he need for 1 cup of mi
postnew [5]

Answer:

2.5

Step-by-step explanation:

5/2=2.5

half of 2 is 1 so for 1 cup of coco  has 2.5 tbs of coco.

6 0
3 years ago
Read 2 more answers
Use the figure to fill in each blank to make a true statement. The simplified expression for the perimeter of the rectangle is _
belka [17]
1) 2l+2w
2)36-2l=2w
3)2w+2w+3+2w+3=36
=6w+6=36
=6w=30
=w=5

the width is 2×5+3=13
4 0
3 years ago
Read 2 more answers
Which expression is equal to 2/sqrt7
Amanda [17]

The one on the top is correct

Step-by-step explanation:

4 0
3 years ago
PLEASE I NEED AN ANSWER ASAP
posledela

Answer:

20 units.

Step-by-step explanation:

To find the perimeter of a trapezoid, the formula is a + b + c + d

a = 1

b = 9

c = 5

d = 5

So, the perimeter is 20 units.

Hope this helped ^^

7 0
3 years ago
Other questions:
  • How do you convert a fraction to a percent
    7·1 answer
  • What is the center of the circle given by the
    12·1 answer
  • The sum of three consecutive integers is -30. find the integers.
    8·1 answer
  • Question in Picture<br> vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
    6·1 answer
  • What is the area of this trianlge
    15·2 answers
  • Whats the difference between a parallelogram and a rectangle.
    5·1 answer
  • the curved surface of a cylindrical surface is 704 cm square calculate the height when the radius is 8cm​
    9·1 answer
  • 20 POINTS! WILL MARK BRAINLIEST--- ANSWER AND EXPLAIN!!! thank you!
    11·1 answer
  • Show correct answers only!! i need asap!!
    15·2 answers
  • Estimate the quotient of<br> 68)6080<br> Express any remainder beginning with an R.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!