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
zhannawk [14.2K]
2 years ago
15

Five books and four pens cost $800. One book costs $120. How much does one pen cost?

Mathematics
1 answer:
cestrela7 [59]2 years ago
3 0
The cost of each pen is $50, because you spend $600 on books leaving $200 to buy FOUR pens, making it $50 per pen
You might be interested in
Jina wanted to study how the area of a rectangle changes with the length if it’s width is fixed. She computed the areas of sever
olganol [36]

Answer:

The domain and the range of the function are, respectively:

Dom\{f\} = [0\,m,5\,m]

Ran\{f\} = [0\,m^{2}, 10\,m^{2}]

Step-by-step explanation:

Jina represented a function by a graphic approach, where the length, measured in meters, is the domain of the function, whereas the area, measured in square meters, is its range.

Dom\{f\} = [0\,m,5\,m]

Ran\{f\} = [0\,m^{2}, 10\,m^{2}]

8 0
3 years ago
If a linear equation is written in the form y=1/2x-2 , which method could be used to graph the line represented by the equation?
sergey [27]

Answer:D

Step-by-step explanation: the equation is written is slope- intersect form were -2 is the y intersect. the coordinate of the y intersect is (0,-2). the number in front of the x is the slope which is 1/2. so the answer is D.

6 0
3 years ago
Read 2 more answers
How can i draw this?
mylen [45]
The green arrow thing is a ray. So, question b. is a ray. So the dot would be B and the arrow would be C. 

3 0
3 years ago
Can you check my answers and help with number 3?
mamaluj [8]

Answer: Question 1 :B,D.

Question 2:option B,

Question 3:Degree=5.

Question 4:option D.

Question 5: option c.


Step-by-step explanation:

1) A polynomial can not have any exponent as a variable or a fraction.

Options B and D are polynomials.

2) The polynomial is having 3 terms and is of degree 3.so it is a cubic trinomial Option B.

3) Degree is the highest power of the variables in the terms .The term 6x^{3} y^{2} has the power=3+2=5

So degree =5.

4)(5x-2+3x^{2} )+(4x+3)=3x^{2} +5x+4x-2+3=3x^{2}+9x+1.

Option D


5)(5x^{2} +2x-5)-(3x^{2}+3x+1)= 5x^{2}+2x-5-3 x^{2}-3x-1

Simplifying like terms,

=2x^{2}-x-6.

Option c.


6 0
2 years ago
Solve the compound inequality 10 >= 7 + 3x and 9-4x<=1 . show steps please.
pav-90 [236]
10 >= 7 + 3x                                              -4x+9<=1
-7 >= -7  - subtract 7                                       -9<=-9   - Subtract 9
__________                                               ___________
3 >=3x  - divide by 3                                       -4x<=-8    - divide by -4

x>=1                                                                      x<=2
5 0
2 years ago
Read 2 more answers
Other questions:
  • 2.375% of 25.68? Explain how
    8·1 answer
  • Bases are 26.5 and 30. the area is 791. what is the height?
    7·1 answer
  • (3x-4)^2(x-3) i need help simplyfind this equation
    10·1 answer
  • Which of the following functions is graphed below?
    7·1 answer
  • Write the point-slope form of the equation with the given characteristics.
    12·1 answer
  • Match the Polynomials with their names. ___ 2x 3 + 4x ___ 3x 5 + 3x 4 + x 3 ___ x 2 + 3 ___ 2x 2 + x − 5 A. Quintic trinomial B.
    7·1 answer
  • What is the place value of the 3 in the number 45,329
    7·2 answers
  • Relationships in Figures
    10·1 answer
  • Which of the following equations has exactly one solution?
    12·2 answers
  • A card is drawn from a standard deck, not replaced, and another is drawn. What is the probability of choosing a heart then a spa
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!