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
dem82 [27]
3 years ago
8

4 markers cost $7.04. Which equation would help determine the cost of 7 markers?

Mathematics
2 answers:
Ivenika [448]3 years ago
8 0
$7.04 divided by 4 will determine the cost of one marker.
which is $1.76

$1.76 (x) 

$1.76 (7) = $12.32
Helen [10]3 years ago
6 0
4x=7.04
7x=y
And you use cross multiplying
4x×y=7.04× 7x
x
You delete x'es
4*y=49.28
y=12.32
You might be interested in
Use the table of values below to select the correct statement.
quester [9]

Answer:

Linear function with rate of change/growth = 2.5, which agrees with the fourth statement listed in the answers options.

Step-by-step explanation:

Notice that both columns of reported x and y values are increasing.

Then examine how the given x-values  increase:

-2, 2, 6, 10, 14  (in steps of 4 units)

and how their corresponding y-values increase:

-2, 8, 18, 28, 38  (in steps of 10 units)

therefore, if we do the rate of change for any pair (x_1,y_1) and (x_2,y_2), we get the following constant rate of change:

\frac{y_2-y_1}{x_2-x_1} = \frac{10}{4} =2.5

Given that this relationship is valid for any pair of (x,y) values. we conclude that the rate of increase is constant, and therefore we are in the presence of a linear function, whose rate of change is 2.5

8 0
3 years ago
Name the Property of Equality that justifies this statement:
Nutka1998 [239]
The name of this property is symetric property of equality
5 0
4 years ago
The pH of a solution is measured eight times by one operator using the same instrument. She obtains the following data: 7.15, 7.
Nikolay [14]

Answer:

(a)7.185

(b)0.000371

(c) 0.019

(d)Sample variance and Sample standard deviation

Step-by-step explanation:

We are given the following sample data.

7.15, 7.20, 7.18, 7.19, 7.21, 7.20, 7.17, 7.18.

(a) Calculate the sample mean. Round your answer to 3 decimal places.

The formula for sample mean =

Sum of terms/Number of terms

= 7.15 + 7.20+ 7.18+7.19+7.21+7.20+7.17+ 7.18/8

= 57.48/8

= 7.185

(b) Calculate the sample variance. Round your answer to 6 decimal places.

The formula for sample Variance =

(x - mean)²/n - 1

n = 8

Sample variance = (7.15 - 7.185)² + (7.20-

7.185)²+ (7.18 -7.185)² + (7.19 -7.185)² + (7.21 - 7.185)² + (7.20 - 7.185)² + (7.17 - 7.185)² + (7.18 - 7.185)² /8 - 1

= 0.001225 + 0.000225+ 0.000025+ 0.000025 + 0.000625 + 0.000225 + 0.000225 + 0.000025/7

= 0.0026/7

= 0.000371428571

Approximately to 6 decimal places = 0.000371

(c) Calculate the sample standard deviation. Round your answer to 3 decimal places.

The formula for Sample Standard Deviation = √Sample variance

= √0.000371428571

= 0.01927248223

To 3 decimal places = 0.019

(d) Which of the following are potential major sources of variability in the experiment

Sample variance

Sample standard deviation

4 0
3 years ago
For what value of x does 3^4x – 27x-3?
AveGali [126]

Answer:

x=0,05555555... or x = 3/54 or x= 1/18

Step-by-step explanation:

81x-27x-3

54x=3

8 0
3 years ago
Read 2 more answers
Question 9:
Arte-miy333 [17]

Answer:

I think the answer is.. .

Step-by-step explanation:

(b)

7 0
3 years ago
Other questions:
  • Solve Please:(c^5)(c)(c^2) Thank You ^-^
    11·1 answer
  • What’s the answer for the equation 3a^2-48
    9·2 answers
  • The point-slope form of the equation of the line that passes through (–4, –3) and (12, 1) is y – 1 = (x – 12). What is the stand
    10·1 answer
  • What is the solution to the equation 4x+16-x=22+6
    5·1 answer
  • 20% of what number is 30? Which equation and solution represents each situation?
    14·2 answers
  • Solve for x.
    11·1 answer
  • An explanation would be great. thank you​
    13·1 answer
  • In the first quadrant, you start at (7,4)
    15·1 answer
  • The tens digit of a two-digit number is one more than the units digit. The difference between this number and the reverse number
    13·2 answers
  • Find the volume and round to the nearest tenth as needed
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!