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
nexus9112 [7]
2 years ago
6

the cost of a pen is 3 times the cost of a pencil and cost of a notebooks is four times that of a pen. If the cost of 6 pencils,

two pens, and one notebook is $18, what is the cost of 1 pen?
Mathematics
2 answers:
madreJ [45]2 years ago
4 0

Answer:

I think the cost of 1 pen would be $9.

Umnica [9.8K]2 years ago
3 0

Answer:

9

Step-by-step explanation:

You might be interested in
You are sitting at the edge of the Grand Canyon admiring the view when you notice a tour group at the bottom of the canyon. You
ololo11 [35]

Answer:

7949.13 feet

Step-by-step explanation:

We are given that,

Angle of depression from the spot to the group = 39°

Height of Grand Canyon = 5000 feet.

So, we will get the following figure of a right triangle.

<em>As, 'in a right triangle, the angles and the sides can be written in trigonometric form'.</em>

We get, \sin A=\frac{perpendicular}{hypotenuse}

i.e. \sin 39=\frac{5000}{x}

i.e. x=\frac{5000}{\sin 39}

i.e. x=\frac{5000}{0.629}

i.e. x = 7949.13 feet

Thus, the line of sight distance is 7949.13 feet.

5 0
3 years ago
The perimeter of an isosceles triangle is 1 m, and the length of the base is equal to 0.4 m. Find the length of a leg.​
ExtremeBDS [4]

Answer:

0.22m

Step-by-step explanation:

0.22361m

7 0
2 years ago
Michelle has just been informed that her cell phone plan will be increasing in price. Her new pricing plan has a flat fee of $34
Phoenix [80]
$34.00 + .08x = total

34 + .08(299) 

=34 + 23.92

= 57.92 would be the highest
3 0
3 years ago
Suppose that a jewelry store tracked the amount of emeralds they sold each week to more accurately estimate how many emeralds to
Ratling [72]

Answer: point estimate = 3.88

Margin of error = 0.63

Step-by-step explanation:

Confidence interval is written in the form,

(Point estimate - margin of error, Point estimate + margin of error)

The sample mean, x is the point estimate for the population mean. Let m represent the margin of error. Since the confidence interval is given as (3.25 , 4.51), it means that

x - m = 3.25

x + m = 4.51

Adding both equations, it becomes

2x = 7.76

x = 7.76/2

x = 3.88

Substituting x = 3.88 into x + m = 4.51, it becomes

3.88 + m = 4.51

m = 4.51 - 3.88

m = 0.63

8 0
2 years ago
If there were no decomposers within an ecosystem which of the following would most likely occur
Lena [83]

You don't have the answer choices but if there were no decomposers within an ecosystem, some plants could die due to a shortage of nutrients .

6 0
3 years ago
Read 2 more answers
Other questions:
  • a science museum offers tours for school groups with 20 or more students. the tour costs $100 plus $3.50 for every student in ex
    6·1 answer
  • Round 52.37 to the nearest tenth
    8·1 answer
  • Choose the equation below whose axis of symmetry is x = 2.
    9·1 answer
  • What is the equation of the parabola with focus (1,1/2) and directrix y=3
    13·1 answer
  • In algebra please help thank you
    8·1 answer
  • THE SUM OF THREE CONSECUTIVE ODD NUMBERS IS 153 WHAT IS THE SMALLEST OF THREE NUMBERS?
    8·1 answer
  • What is the distance
    12·1 answer
  • Find the surface area of the prism. Enter your answer in the box. A rectangular prism with dimensions 6 meters by 3 meters by 12
    5·1 answer
  • Find the number that belongs in the green box.<br><br>Round your answer to the nearest tenth.​
    9·1 answer
  • Who can help with my geometry b final exam
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!