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
Alexus [3.1K]
3 years ago
12

If 10 + 5x is 12 more 8, what is the value of 3x?

Mathematics
2 answers:
Aleks [24]3 years ago
8 0

Answer:

6

Step-by-step explanation:

If 10 + 5x is 12 more than 8, what is the value of 3x? We can represent this with the equation below.

10+5x = 12+8.

Simplifying this gives us 10+5x = 20, then 5x = 10, then x = 2.

If x = 2, then 3x = 6.

vredina [299]3 years ago
5 0

Answer:

3x=6

Step-by-step explanation:

10 + 5x =8+12

10 +5x = 20

Subtract 10 from each side

10-10+5x=20-10

5x= 10

Divide by 5

5x/5 = 10/5

x = 2

We want 3x

3(2) = 6

3x=6

You might be interested in
Figure A is a scale image of Figure B. What is the value of x?
kari74 [83]

Hey there! :)

Answer:

x = 21 units.

Step-by-step explanation:

Since we know Figure A is just Figure B scaled, we can set up a proportion:

\frac{45}{35}= \frac{27}{x}

Cross multiply to solve for x:

45 · x = 35 · 27

45x = 945

Divide both sides by 45:

x = 21 units.

4 0
3 years ago
There are 24 girls in a class. The ratio of girls to boys is 3:8.
dangina [55]

Answer:

64 boys.

Step-by-step explanation:

There are 3 girls for every 8 boys.

24/3 = 8

8 * 8 = 64

7 0
3 years ago
Solve 2x3 + x2 - 15x completely by factoring.
Ludmilka [50]
2x^3+x^2-15x factored completely would be: <em>x(x+3)(2x-5).</em> Not sure which answer choice but I hope that I was some help.
8 0
3 years ago
Solve the word problem.  The height of a triangle with base b and area A is given by the formula h = 2A/B .  What is the height
jeka94
h =  \frac{2A}{b} \ \ \ and\ \ \ A=26\ cm^2\ \ \ and\ \ \ b=8\ cm\\\\h= \frac{2\cdot26}{8} = \frac{2\cdot2\cdot13}{2\cdot2\cdot2} = \frac{13}{2} =6.5\ [cm]\\\\Ans.\ D
4 0
3 years ago
What is the perimeter of square abcd? startroot 37 endroot units 4 startroot 37 endroot units 28 units 37 units
klio [65]

Answer:

Step-by-step explanation:

All you have to do is add the four sides together and that should be your answer.

3 0
2 years ago
Other questions:
  • What is another equivalent reaction to 6/2
    12·1 answer
  • 2. Wilton drives a taxicab. He charges $40 per hour. One passenger gave Wilton a tip of $30. He gave Wilton a total of $150. He
    8·2 answers
  • I need to know how to work this out: 24 red marbles is 40% of ______ marbles.
    8·1 answer
  • Enter the equation of the line in slope-intercept form.
    12·1 answer
  • What adds to give -14 but multiplies to give 48?
    9·2 answers
  • Write the inequality for the following: Five less than a<br> number is no less than 14.
    14·1 answer
  • GOLF Sky is a member of her school’s golf team. The table shows her scores from each of her matches. What was her average golf s
    7·1 answer
  • PLS HELP ASAP PLS PLS PLS
    12·2 answers
  • A boy spent 3/8 of his money and had 15.00 left. How much did he spend?
    14·1 answer
  • A spinner is spun 20 times, and the number of times the arrow lands
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!