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
Klio2033 [76]
2 years ago
8

2(3-x)-1.4(5-2x)=2x+5.3

Mathematics
2 answers:
Hitman42 [59]2 years ago
7 0
I think the answer is : x = -5.25
MaRussiya [10]2 years ago
6 0

Answer:

x=-5.25

Step-by-step explanation:

Original equation:

2(3-x)-1.4(5-2x)=2x+5.3

Distribute:

6-2x-7+2.8x=2x+5.3

Group like terms:

(6-7)+(2.8x-2x)=2x+5.3

Add like terms:

-1+0.8x=2x+5.3

Add 1 to both sides

0.8x=2x+6.3

Subtract 2x from both sides

-1.2x=6.3

Divide both sides by -1.2

x=-5.25

You might be interested in
A number that represents part of a whole or part of a set is called
svetlana [45]
A fraction. I.E. : 6 has 36 parts (6 parts per one) If you took 2 out of the six parts away you would get 32/6 or 5 2/6 (2/6 could be simplified to 1/3)
5 0
3 years ago
Write and solve equation.<br> What is 16% of 80?
PolarNik [594]
Question: What is 16% of 80?

You have to change the percentage to a decimal.

Remove the percentage sign and divide by 100 (% are based off 100)

16%⇒.16 

Now multiply .16 and 80

.16 * 80=12.8

Answer: 12.8
5 0
3 years ago
Two part-time instructors are hired by the Department of Statistics and each is assigned at random to teach a single course in p
scZoUnD [109]

Answer:

The probability that they will teach different courses is \frac{2}{3}.

Step-by-step explanation:

Sample space is a set of all possible outcomes of an experiment.

In this case we will write the sample space in the form (x, y).

Here <em>x</em> represents the course taught by the first part-time instructor and <em>y</em> represents the course taught by the second part-time instructor.

Denote every course by their first letter.

The sample space is as follows:

S = {(P, P), (P, I), (P, S), (I, P), (I, I), (I, S), (S, P), (S, I) and (S, S)}

The outcomes where the the instructors will teach different courses are:

s = {(P, I), (P, S), (I, P),(I, S), (S, P) and (S, I)}

The probability of an events <em>E</em> is the ratio of the number of favorable outcomes to the total number of outcomes.

P(E)=\frac{n(E)}{N}

Compute the probability that they will teach different courses as follows:

P(\text{Different courses})=\frac{n(s)}{n(S)}=\frac{6}{9}=\frac{2}{3}

Thus, the probability that they will teach different courses is \frac{2}{3}.

3 0
3 years ago
Can someone help me with this?!
cupoosta [38]
Sub in the numbers
2(5)^2 - 4(5) + 5
=50 - 20 + 5
=30 + 5
=35
5 0
3 years ago
Which situation CANNOT be represented by this equation? -5x +170=125
Helen [10]

It is A because she can not have 125 in her account at the beggining of the month and end with 170 at the end of the month if she spends money.

B and C all make logical sense of her bank account decreasing over the month.

5 0
3 years ago
Other questions:
  • Evaluate the equation 4K-10/k=8
    6·1 answer
  • What is the unit rate to the nearest cent per ounce if there is size is pint and the quantity is 16oz and the price is $3.98
    5·1 answer
  • 2. Joyce waited three-quarters of an hour to
    9·1 answer
  • each yard of fabric costs $4.35. a table shows the number of yards if fabric and total cost of the fabric. which of the followin
    11·2 answers
  • Annual wages for a nursing aid who earns $8.29 per hour
    15·1 answer
  • Naval intelligence reports that 99 enemy vessels in a fleet of 1818 are carrying nuclear weapons. If 99 vessels are randomly tar
    15·1 answer
  • Got a question here please answer it btw look at the photo for question.
    15·1 answer
  • Help pls. will give brainliest.
    14·1 answer
  • The original selling price of a jacket was s dollars. The selling price was then changed on two occasions by the store owner. It
    10·1 answer
  • Without solving determine the number of real solutions for each quadratic equation
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!