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
geniusboy [140]
3 years ago
6

Can you help me on these three

Mathematics
1 answer:
V125BC [204]3 years ago
4 0
7. Let x be the money she began with, then
1/3 (x - 4/5 x) = 15
1/3 (1/5 x) = 15
1/15 x = 15
x = 15 * 15 = $225
Therefore, she started with $225

Let x be the number of students surveyed, then
1/2(x - 1/3x - 1/6x) = 9
1/2(1/2x) = 9
1/4x = 9
x = 4 * 9 = 36
Therefore, the number of students surveyed is 36.
You might be interested in
Which is an example of continuous data?
Lynna [10]

Answer:

A) amount of snowfall in a blizzard  

Step-by-step explanation:

Both continuous and discrete data are quantitative.

The difference is that  

  • Continuous data can take any value. You obtain it by measurement.
  • Discrete data can take only certain values. You obtain it by counting.

The amount of snowfall in a blizzard is continuous data.  It can take any value such as 100.3 cm or 250.5 cm .

B) is wrong. The number of students who pass a math quiz is discrete data. You can't have half a student.

C is wrong. The number of languages an individual speaks is discrete data. You can't speak half a language.  

D) is wrong. The number or treadmills in a gym is discrete data. You can't have half a treadmill.

7 0
3 years ago
Read 2 more answers
A cylinder has a radius of 5 and height of 3. what is the volume
Lapatulllka [165]

Answer:

236 cubic units (to 3 significant figures)

Step-by-step explanation:

volume of a cylinder = \pir²h   (where r = radius and h = height)

Therefore, volume = \pi x 5² x 3

                               = \pi x 25 x 3

                               = 75\pi

                               = 236 cubic units (to 3 significant figures)

8 0
2 years ago
What is the equation of the line that passes through (-3, -1) and has a slope of 2/5? Put your answer in slope-intercept form.
Zanzabum
Hi there!

The general formula of A line in slope-intercept form is the following:
y = mx + n

In this formula m represents the slope of the line. Therefore, we can conclude that m = 2/5.
y =  \frac{2}{5} x + n

We also know that the line passes through the point (-3, -1) and we can therefore substitute this coordinate into the formula of the line.
x = -3 and y = -1

- 1 =  \frac{2}{5}  \times  - 3 + n

Multiply first.
- 1 =  -  1\frac{1}{5}  + n

And finally add 1 1/5 to both sides of the equation.
\frac{1}{5}  = n

We can now switch sides.
n =  \frac{1}{5}

Now we've found our value of n, which we can substitute into the formula of our line. Hence, in slope-intercept form, we find the following:
y =  \frac{2}{5}  x  +  \frac{1}{5}

7 0
4 years ago
<br> I need help with the solution
Artyom0805 [142]

The answer is Pedro.

3 0
2 years ago
What is the atomic number of the element represented by the diagrams
ratelena [41]

Answer:where is the diagram so i could help you

Step-by-step explanation:

4 0
4 years ago
Other questions:
  • Ron wrote the pattern shown below. What is the rule for following Ron's pattern?<br> 11, 36, 86, 186
    7·1 answer
  • What is the equation of the asymptote of the graph of y=2(6^x) ?
    13·1 answer
  • Which statement defines the term markup
    8·1 answer
  • 5 min left please help
    8·2 answers
  • Solve 4^x-5 = 6 for x using the change of base formula log base b of y equals log y over log b
    12·1 answer
  • F(x) = x3 + 3x² - 4x
    9·1 answer
  • The distance between the points (12,9) and (0,4) is A) 14 units B) 13 units C) 15 units D) 16 units
    10·2 answers
  • Find the total area of the figure
    6·1 answer
  • Don notices that the side opposite the right angle in a right triangle is always the longest of the three sides. Is this also tr
    13·1 answer
  • 2 plus 2 what is it​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!