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
qwelly [4]
3 years ago
7

Solving the equation 5x + 4 = 19​

Mathematics
2 answers:
user100 [1]3 years ago
6 0

Step-by-step explanation:

5x = 19 - 4

5x = 15

x = 15/ 5

= 3

hope it helps!

Nana76 [90]3 years ago
4 0

Answer:

x = 3

Step-by-step explanation:

5x + 4 = 19

5x = 19 - 4

5x = 15

x = 15 ÷ 5

x = 3

Thus, The value of x is 3

<h3><u>FOR</u><u> </u><u>VERIFICATION ONLY</u><u>:</u></h3>

5x + 4 = 19

5(3) + 4 = 19

15 + 4 = 19

19 = 19

Hence, L.H.S = R.H.S

<u>-TheUnknown</u><u>Scientist</u>

You might be interested in
Deandra is doing her math homework. She completed the first 6 problems in 2 hours and the last 12 problems in 3 hours.
Annette [7]

Answer:

Deandra completed the first 6 problems at a rate of 3 problems per hour and the last 12 at a rate of 4 problems per hour.

Step-by-step explanation:

6 problems ÷ 2 hours = 3 problems per hour

12 problems ÷ 3 hours = 4 problems per hour

3 0
3 years ago
Work out the gradient of a line that passes through co-ordinates (3,4) &amp; (6,16).<br>​
Ipatiy [6.2K]

Answer:

4.33

Step-by-step explanation:

Given data

x1= 3

y1=3

x2=6

y2=16

M= y2-y1/x2-x1

substitute

M=16-3/6-3

M= 13/3

M=4.33

Hence the gradient is 4.33

3 0
3 years ago
Find the supplement of the angle 39
Sav [38]

Answer:

It is 141°.

Step-by-step explanation:

supplementary angles are angles that sum up to 180°

Therefore; 180-39=141

angle that supplement 39° is 141°.

3 0
3 years ago
Height, in meters, is measured for each person in a sample. After the data are collected, all the height measurements
charle [14.2K]

Answer:

(E) The z-scores of the height measurements

Step-by-step explanation:

Mean is given by

\bar {x}=\frac{1}{n}\left(\sum _{i=1}^{n}{x_{i}}\right)=\frac{x_{1}+x_{2}+\cdots +x_{n}}{n}

Where,

n = Number of people

x_{i} = The heights of people

When converting m to cm the mean would be

\bar {x}=\frac{1}{n}\left(\sum _{i=1}^{n}{x_{i}}\right)\times 100

So, the mean would change

The median gives us the middle data value when the data values are in ascending order.

So, the median would change

Standard deviation

s=\sqrt{\frac{1}{N-1}\sum_{i=1}^{N}(x_i-\bar{x})^2}

When converting to centimeters

s=\sqrt{\frac{1}{N-1}\sum_{i=1}^{N}\left((x_i-\bar{x})\times 100\right)^2

Hence, the standard deviation would change

When converting to centimeters the maximum height in meters would be the maximum height in centimeters also.

The z score is given by

z=\frac{x-\mu}{\sigma}

where,

x = Data point

\mu = Mean

\sigma = Standard deviation

When converting to centimeters

z=\frac{(x-\mu)\times 100}{\sigma\times 100}\\\Rightarrow z=\frac{x-\mu}{\sigma}

Hence, the z score would remain the same

5 0
4 years ago
For the polynomial 17x2 – x: (3 marks)
Sladkaya [172]

Answer:

See below

Step-by-step explanation:

Given polynomial is: 17x^2 - x

a. Terms: 17x^2, \: \&\: - x

b. 17 and - 1

c. Binomial or quadratic polynomial

7 0
3 years ago
Other questions:
  • What is the solution of x = 2 + StartRoot x minus 2 EndRoot?
    15·2 answers
  • 7. You are painting a large wall mural. The wall length is 3 times the height. The
    12·1 answer
  • Write a situation in which positive and negative numbers are used to describe values that have the opposite meaning.
    11·1 answer
  • What is the distance between (6, 2) and (-3, -2)?
    7·1 answer
  • Which of the following represents the ratio of the long leg to the short leg in the right triangle shown below
    14·2 answers
  • Which expression is equivalent to (x^1/2y^1/4z)^-2?
    11·2 answers
  • Solve the equation: 3.5=m x 2.2
    15·2 answers
  • Which ratio represents the tangent of an angle?
    14·2 answers
  • Help. again............................
    10·2 answers
  • Graphing<br> Do these and you will get brainliest answer!
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!