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
Natasha2012 [34]
3 years ago
12

steve reads 20 pages of his graphic novel per hour . if the book has 200 pages and he reads for d hours , which expression shows

the number of pages he has left to read after reading for d hours ?
Mathematics
1 answer:
PolarNik [594]3 years ago
7 0
The answer would be D. 200 - 20d.

This is because the question asks for pages left after reading for "d" (however many) hours. Since the book has 200 books, you'd subtract from that number since it's the "starting number" of pages. If he reads 20 pages per hour, you would multiply those together to get how many he has read, then subtract that number from 200, to get the amount of pages left.

I hope this helps!
You might be interested in
Hi can someone help me with this?
zalisa [80]

Answer:

2^{2} or 4

Step-by-step explanation:

7 0
3 years ago
Find the value of x² - x+1 when x=√3 -1, in the form a+b√3 where a and b are integers​
lidiya [134]

Answer:

6-3\sqrt{3}

If you compare this to a+b\sqrt{3}, then a=6 and b=-3.

Step-by-step explanation:

We are given x=\sqrt{3}-1 and we are asked to find the value of x^2-x+1.

So we will need to find x^2.

x=\sqrt{3}-1

Square both sides:

x^2=(\sqrt{3}-1)^2

Expand using identity: (x-a)^2=x^2-2ax+a^2.

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

x^2=3-2\sqrt{3}+1

x^2=4-2\sqrt{3}

Let's go back to the full x^2-x+1.

x^2-x+1

(4-2\sqrt{3})-(\sqrt{3}-1)+1

4-2\sqrt{3}-\sqrt{3}+1+1

6-3\sqrt{3}

If you compare this to a+b\sqrt{3}, then a=6 and b=-3.

5 0
3 years ago
The parabola y=x2y=x^2 y=x 2 y, equals, x, squared is scaled vertically by a factor of 110\dfrac{1}{10} 10 1 ​ start fraction, 1
sweet [91]

Question is not well presented

The parabola y=x² is scaled vertically by a factor of 1/10.

What is the equation of the new parabola?

Answer:

The equation of the new parabola is 0.1x²

Step-by-step explanation:

Given

Parabola: y = x²

Scale = 1/10 = 0.1

The interpretation of this question is that; there's a need to scale the graph in ratio 1:10.

I.e; 1 unit on the parabola is being represented by 10 unit on the scale

So, x (on the new parabola) = 1/10 of old x.

So, the new equation of the parabola = 1/10x²

New equation = 0.1x²

Hence, the equation of the new parabola is calculated as 0.1x²

5 0
3 years ago
Un answered question
ale4655 [162]

Answer:

Maksud awk apa

<em>Mana</em><em> </em><em>boleh</em><em> </em><em>main</em><em> </em><em>main</em><em> </em><em>tulis</em>

6 0
3 years ago
Read 2 more answers
Anaya swims 10 miles at eachof her practice sessions. how long is a practice session if she swims at an average speed. 2 miles p
Trava [24]

Answer:

If 2 mph) 5 hours

If 2.5 mph) 4 hours

If m mph) 10/m hours

If m+2 mph) 10/(m+2) hours

If m/3 mph) 30/m hours

Step-by-step explanation:

To find the time divide the distance (10) by the speed.

10/2=5

10/2.5=4

10/m

10/(m+2)

10/(m/3)=10(3/m)=30/m

4 0
2 years ago
Read 2 more answers
Other questions:
  • Help please!!!!!!!!!!!!!!!
    7·1 answer
  • A line with a slope of 3/8 that passes through (0,-8)
    13·1 answer
  • Does the equation represent a direct variation? If so, find the constant of variation.
    7·1 answer
  • What are the partial products of 563 x 410
    10·1 answer
  • Which sentence best describes the end behavior of the function shown
    7·1 answer
  • Help asap Find the value of x in the triangle <br>A.2<br>B.29<br>C.63<br>D.299<br><br><br><br>​
    11·2 answers
  • What is 103.833333333333 To the nearest hundredth
    6·1 answer
  • Find the value of x.
    7·1 answer
  • A teacher is flying a drone as shown in the diagram below. The drone is maintaining a height of approximately 150 feet above his
    10·1 answer
  • There are 12 boys and 12 girls in Trevor's math class. His teacher will randomly select one student to present a homework proble
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!