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
agasfer [191]
3 years ago
15

-3(5x-6)=3x What is x

Mathematics
2 answers:
denis23 [38]3 years ago
8 0

Answer:

x=1

Step-by-step explanation:

-3(5x-6)=3x

-15x + 18 = 3x

18=18x

1=x

In-s [12.5K]3 years ago
5 0

-3(5x-6)=3x  //:(-3)

5x-6=-x

5x+x=6

6x=6 //:6

x=1

You might be interested in
An element with mass 590 grams decays by 19.5% per minute. How much of the
notsponge [240]

22.8 gms

Step-by-step explanation:

Step 1:

Given,

Mass of the element = 590 gms

Percentage decay per minute = 19.5%

Step 2 :

Fraction of the element remaining at the end of 1 minute = 1 - 0.195 = 0.805

Hence the fraction of element remaining after 15 minutes  = 0.805^{15} = 0.03863

So the mass of the element remaining after 15 minutes = 0.03863 * 590 = 22.8 rounded off to the nearest 10th of a gram

mass of the element remaining after 15 minutes = 22.8 gms

6 0
4 years ago
Divide 51g into the ratio 1:2
Diano4ka-milaya [45]
The answer is :
17:34
Explanation:
1 + 2 =3
51 /3 = 17
17 x1 =17
17 x 2 =34
5 0
3 years ago
Tom had $56. He bought a soda for $2 and 2 cookies for $3. Which expression corectly shows the total money Tom has left
frutty [35]

$56 − (−$2) + (−$3)=51

4 0
3 years ago
The annual tuition at a public two-year college last year was $3,200. For the new school year, Elizabeth’s first year in college
Korolek [52]

he tuition of $3,200 increased by 5% is: 3,200 + 0.05*3,200 = 1.05*3,200 = $3,360

Elizabeth saved equal amounts each month for 12 months the previous year thus we divide $3,360 by 12 to find how much she saved monthly:

$3,360 : 12 = $280

The minimum amount Elizabeth should have saved monthly is $280.

6 0
3 years ago
A.Find a formula for
Vlada [557]

a. Notice that

1/(1*2) = 1/2 = 1 - 1/2

1/(2*3) = 1/6 = 1/2 - 1/3

1/(3*4) = 1/12 = 1/3 - 1/4

and so on, which suggests the n-th term of the sum can be written as

\dfrac1{n(n+1)}=\dfrac1n-\dfrac1{n+1}

Then the sum itself is telescoping:

\dfrac1{1\cdot2}+\dfrac1{2\cdot3}+\dfrac1{3\cdot4}+\cdots+\dfrac1{n(n+1)}

=\left(1-\dfrac12\right)+\left(\dfrac12-\dfrac13\right)+\left(\dfrac13-\dfrac14\right)+\cdots+\left(\dfrac1n-\dfrac1{n+1}\right)

=1-\dfrac1{n+1}

b. The proof is trivial:

\dfrac1n-\dfrac1{n+1}=\dfrac{n+1}{n(n+1)}-\dfrac n{n(n+1)}=\dfrac{n+1-n}{n(n+1)}=\dfrac n{n+1}

so the formula found in (a) is correct.

5 0
3 years ago
Other questions:
  • ANSWER PLZ QUICK AND FAST
    15·2 answers
  • Solve for a.
    14·2 answers
  • Four friends want to take a vacation together, so each one gets a part-time job. Each person has 8 weeks to save $720 for the va
    13·2 answers
  • Raisa receives a 7% commission on all items that she sells. Her commission for her sales on Monday was $47.25. What was the doll
    7·1 answer
  • 1/3(z+4)-6=2/3(5-z) solve for z and check solution
    14·2 answers
  • Which of the following is equal to the square root of 64
    9·2 answers
  • Aspen can work 25 math problems in 12 and half minutes. How long will it take her to work 38 problems?
    6·1 answer
  • Please help problems below!!!
    10·1 answer
  • There were approximately 16 million visitors to Disneyland in 2012. If the theme park is open every day of the year, about how m
    13·1 answer
  • The primary purpose of Passage 2 is to
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!