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
Marat540 [252]
2 years ago
6

Show how to solve 2x+5=13, justify the steps

Mathematics
2 answers:
liberstina [14]2 years ago
8 0

Answer:

The answer is 4

Step-by-step explanation:

2x + 5 = 13

Now, Subtract 5 from both side we get,

2x + 5 - 5 = 13 - 5

2x = 8

Then, Divide both side by 2 we get,

2x/2 = 8/2

x = 4

Thus, The answer is 4

<u>-TheUnknownScientist</u><u> 72</u>

vichka [17]2 years ago
8 0

Answer:

x = 4

Step-by-step explanation:

2x + 5 = 13

We must solve to find the value of 'x'. Take  5 to the right hand side to find x.

2x  = 13 - 5

2x = 8

Take 2 in the '2x' to the right hand side to finally solve and find the value of x.

x = 8 ÷ 2

x = 4

<em>[ Note: when you take a term to the other side of equation, the sign will be the opposite of what it was before. Fore example of 2x was positive on the left hand side of the equation, it will be negative on the right hand. Same goes with multiplications and divisions. If 2x was multiplied with another term on the left hand, it will divided when shifted to the right hand. ]</em>

You might be interested in
Karina says every equilateral triangle is acute. Is this true explain
LenaWriter [7]
Yes, every equilateral triangle is acute because the angles are always congruent(identical) and 60 degrees which is acute. But I may be wrong. :P
5 0
3 years ago
Questions. multiple choicw
jeyben [28]
11. 8 * 18 = 144 in³, Option D

12. Half the height of 8 cm is 4 cm. Volume = 4 * 6 * 10 = 240 cm³, Option D

13. Double the dimensions you get 8 cm for the height, 6 cm for the radius. Then plug in. V = pi * (6)² * 8 >> pi * 36 * 8 = 288pi or ≈ 904.78, Option C

14. Half of all the dimensions are 1 in, 4 in, and 3 in. 1 * 4 * 3 = 12 in³, Option B

15. \frac{10}{16} =  \frac{x}{18} >> 16x = 180 >> x = 11.25 so Option B

16. Option D, 10 cm.

17. Option C, 8.5 in

18. Option B. 10.2 km

19. Option D. 0.82

20. cos 30 = b / 11.5 >> b = 11.5(cos (30)) = 9.96 m, Option C. 
6 0
2 years ago
A farm stand sells apples pies and jars of applesauce. The table shows the number of apples needed to
lara31 [8.8K]

Answer:

IF I am correct, 5

Step-by-step explanation:

98/ 18

8 0
2 years ago
Among 46​- to 51​-year-olds, 28​% say they have called a talk show while under the influence of peer pressurepeer pressure. Supp
sasho [114]

Answer:

0.8997, 0.9999

Step-by-step explanation:

Given that among 46​- to 51​-year-olds, 28​% say they have called a talk show while under the influence of peer pressure.

i.e. X no of people who say they have called a talk show while under the influence of peer pressure is binomial with p = 0.28

Each person is independent of the other and there are only two outcomes

n =7

a) the probability that at least one has not called a talk showcalled a talk show while under the influence of peer pressure

=P(Y\geq 1) where Y is binomial with p = 0.72

= 1-(1-0.72)^7\\=0.9999

b) the probability that at least one has  called a talk showcalled a talk show while under the influence of peer pressurepeer pressurethe probability that at least one has not called a talk showcalled a talk show while under the influence of peer pressure

=P(x\geq 1) =1-P(0)\\= 1-(1-0.28)^7\\=0.8997

3 0
2 years ago
Solve for x in the equation x2 - 4x-9= 29.
alukav5142 [94]

Answer:

I think the first one

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • 30 In AXYZ shown below, medians XE, YF, and ZD intersect at C.
    5·1 answer
  • A circular flower bed in a botanical garden has a radius of 4 feet. What is the area of the flower bed? Use 3.14 for π . Enter y
    14·1 answer
  • Determine the value of x in this polygon.
    6·1 answer
  • In choosing this year 327 voted musical and 115 voted drama. How many more students voted musical than drama
    9·1 answer
  • Y-3=2(x+1) complete the missing value in the solution to the equation
    7·2 answers
  • Answer the following monomial of division (-2x^2y^5)^3 (5x^4)/10x^7y^13
    12·2 answers
  • A committee must be formed with 5 teachers and 4 students. If there are 6 teachers to choose from, and 15 students, how many dif
    6·1 answer
  • Help pls pls pls pls
    10·1 answer
  • 100 Points for this
    15·2 answers
  • Find the value of x that makes the equation true:<br><br>x + 3 = 4
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!