All categories

4 years ago

What is the solution? x=? 2x+3=4x+2

Mathematics

2 answers:

Pie4 years ago

6 0

2x+3=4x+2

-2 both sides

2x+1=4x

-2x both sides

1=2x

2x=1

÷2 both sides

x=0.5 or 1/2

Alenkasestr [34]4 years ago

3 0

2x + 3 = 4x + 2

x= 0.5

You might be interested in

You have made it to the final round of a game show. The announcer asks you the final multiple choicequestion, which has four pos

Fynjy0 [20]

Answer:

The best option is to phone a friend which will yield a total earnings of $ 806,400

Step-by-step explanation:

From the analysis of the question, there is the probability of success and failure.

if he choose not to answer which is the probability of success, his earnings = $500,000.

if he he answers the question correctly, his earnings = $1,000,000 which in the end, is still a success for him

if he answers the question wrongly, his earnings = $32,000

the last option is to phone a friend and he will either choose option a or option b

Probability of choosing option A = 0.6

Probability of choosing option B = 0.4

<h3>For the second option ( option a) ; If he chooses to answer the question by going with option a</h3>

expected earnings = P(choosing A) x his earnings if correct + P(choosing B) x his earnings if wrong

= 0.6 x 1,000,000 + 0.4 x 32,000

= $612,000 will be his earning by second option

if he picks the option b = P (choosing B) x his earnings if correct + P(choosing A) x earnings if wrong = 0.4 x 1,000,000 + 0.6 x 32,000

= $419,000

<h3>if he chooses the third option of phoning his friend; since his probability of either a or b is like 80% (o.8) if correct and 0.2 (20%) if wrong = </h3>

from the P(success) + P( failure) =1

His earnings = Probability of success x earnings if correct + Probability of failure x earnings if incorrect = 0.8 x 1,000,000 + 0.2 x 32,000

= $806,400

from the calculation done, it is apparent that his best option is to go by phoning a friend since that will yield more earnings for him which is greater than his earnings by going for the second options hence the best option is phoning a friend as this will accrue his expected earning to be $ 806,400

5 0

4 years ago

1. What are the solutions to the quadratic equation

Hitman42 [59]

X^2 -36 = 0 the ans is X=6 and x =-6 because 6^2=36

6 0

4 years ago

Read 2 more answers

Need a quick answer please

Flauer [41]

The answer is 27 :) The number of Country albums are 18 so 45-18=27

3 0

3 years ago

im pretty supitd so plzz answer and i got the 2nd and 4th one and it said it was wrong and i only have 1 try left so help me plz

s2008m [1.1K]

Answer: A) Yes, because the number can be written as the quotient of two integers

=====================================================

Explanation:

Any repeating decimal can be expressed as a fraction of two integers.

---------------------------------------

Optional section:

Here's a proof showing how the given number can be expressed as a fraction

Let x = 0.020020200202002...

The block of digits "02002" repeats forever.

Multiply both sides by 10^5 = 100,000 to move the decimal over 5 spots to the right.

The equation

x = 0.020020200202002...

will turn into

100000x = 2002.0200202002...

We have this system of equations

$\begin{cases} x = 0.020020200202002\ldots\\100000x = 2002.0200202002\ldots\end{cases}$

Subtracting said equations leads to

100,000x - x = 99,999x on the left

2002.0200202002... - 0.0200202002... = 2002 on the left

Note how the decimal portions line up perfectly to cancel out when we subtract

After those two subtractions, we end up with the equation

99,999x = 2002

Divide both sides by 99,999 and we isolate x

x = 2002/(99,999)

Use your calculator to find that,

2002/(99,999) = 0.02002020020202...

which helps confirm our answer.

6 0

3 years ago

PLEASE HELP i don’t understand

Kitty [74]

Answer:

29.7

Step-by-step explanation:

y = 2.7x + 2.7

y = 2.7(1) + 2.7 = 5.4

y = 2.7(2) + 2.7 = 5.4 + 2.7 = 8.1

y = 2.7(3) + 2.7 = 8.1 + 2.7 = 10.8

y = 2.7(4) + 2.7 = 10.8 + 2.7 = 13.5

y = 2.7(10) + 2.7 = 27 + 2.7 = 29.7

5 0

3 years ago