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
Travka [436]
2 years ago
12

Three times the sum of a number and eight is four more than the number. find the number

Mathematics
1 answer:
docker41 [41]2 years ago
7 0

Answer:

3(x+8)=4+x

distribute the 3 by multiplying it with the x and the 8

3x+24=4+x

subtract x from both sides

2x+24=4

subtract 24 from both sides

2x=4-24

2x=-20

divide each side by 2

leaving the variable isolated

x=-10

Step-by-step explanation:

It is important to balance each side by doing the same to both sides such as at the end divide both sides by 2.

You might be interested in
A bag of marbles comes with 8 purple marbles 12 red marbles and six blue marbles what is the ratio of red marbles to all the mar
ASHA 777 [7]

Answer:

6:13 or 6/13

Step-by-step explanation:

the total number of marbles is 26

the total number of red marbles is 12

6 to 13

6:13 OR 6/13

<em>(I was not sure if I was supposed to leave it as 12:26 or simplify it to 6:13, but I think 6:13 is more reasonable since it is asking for a ration)</em>

5 0
3 years ago
Audrey has 32 dimes and quarters in her piggy bank with a total value of $6.50. how many of the coins are dimes and how many are
fgiga [73]
D + q = 32....d = 32 - q
0.10d + 0.25q = 6.50

0.10(32 - q) + 0.25q = 6.50
3.20 - 0.10q + 0.25q = 6.50
-0.10q + 0.25q = 6.50 - 3.20
0.15q = 3.30
q = 3.30 / 0.15
q = 22 <===  22 quarters

d + q = 32
d + 22= 32
d = 32 - 22
d = 10 <=== 10 dimes
7 0
3 years ago
The diagram below represents a generic right triangle.
Oksi-84 [34.3K]
Bshould be the answer !
4 0
3 years ago
Mel wants to buy a pair of shoes that costs $120. She has saved $45 and has a job that pays her $10 per hour. The number of hour
maksim [4K]
<h2>Answer: 8</h2>

Step-by-step explanation:

10x+45 > 120\\10x+45-45 > 120-45\\10x > 75\\\frac{10x}{10} > \frac{75}{10} \\x > 7.5

Therefore, Mel has to work at least 7.5 hours or 8 total hours.

3 0
1 year ago
PLEASE HELP! Write a numerical expression involving division in which the first step in evaluating the expression is addition. D
Tanzania [10]
4/(1+3) or \frac{4}{1+3}

Addition is the first step for two reasons.
1) the Order of Operations requires you do operations in parentheses first
2) the division cannot be performed until you know what you're dividing
8 0
3 years ago
Other questions:
  • Evaluate each expression for the given value of the variable 60 over m;m=5
    5·1 answer
  • The volume of this cube is 64 cubic units. What's the edge length?
    13·1 answer
  • The product of 0.1400 × 6.02 × 1023 will have how many significant figures?
    9·2 answers
  • Please help me, solve for y 2x-y=5
    11·1 answer
  • The ages of the members of a gym have a bell-shaped distribution with a mean of 48 years and a standard deviation of 11 years. B
    7·1 answer
  • Solve for x, given the equation Vx+9 - 4 = 1.<br> Is it extraneous or not
    8·1 answer
  • The ratio table below shows the relationship between the weight of apples purchased and the total cost of the apples.
    11·2 answers
  • (20 PTS) PLEASE HELP IM IN A HURRY WILL GIVE BRAINLIST
    9·2 answers
  • What is the meaning of the slope in this situation?
    15·2 answers
  • Latasha played a game where she could either lose or gain points each round. at the end of 8 rounds , she has 19 points . After
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!