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
Nikolay [14]
2 years ago
7

Jayden has been reading a 275275275-page book for english class. on average, he has read about 101010 pages in 151515 minutes (\

text{min})(min)left parenthesis, m, i, n, right parenthesis. with a deadline looming, jayden realizes that he won't finish in time unless he skims through the rest of the book. if he skims the book, he can cover 151515 pages in 10\,\text{min}10min10, space, m, i, n. if it takes jayden 555 hours and 50\,\text{min}50min50, space, m, i, n to finish the book (reading and skimming combined), how many pages did jayden have to skim through?
Mathematics
1 answer:
Vitek1552 [10]2 years ago
7 0
<span>75 pages.
   OK. Lots of copying errors here. I'll be using 275 page book, reading 10 pages per 15 minutes, skimming 15 pages per 10 minutes, 5 hours and 50 minutes to complete the book.
   To make things easier, first convert the time to just minutes. So 5 * 60 + 50 = 300 + 50 = 350 minutes.

   Now let's use the variable X for the number of minutes spent skimming and (350-X) for the number of minutes spent reading.
 X * 15/10 + (350 - X)*10/15 = 275

   Solve for X.
 X * 15/10 + (350 - X)*10/15 = 275
 X * 15/10 + 350*10/15 - X*10/15 = 275
 X * 15/10 - X*10/15 = 275 - 350*10/15
X(15/10 - 10/15) = 275 - 3500/15
 X(45/30 - 20/30) = 825/3 - 700/3
 X(25/30) = 125/3
 X = 125/3 * 30/25 = 125/1 * 10/25 = 5/1 * 10/1 = 50/1 = 50
   So Jayden spent 50 minutes skimming. And at the rate of 15 pages every 10 minutes, he skimmed 50*15/10 = 750/10 = 75 pages.</span>
You might be interested in
2) Lucy spent $15, 500 to purchase a new car this year. Lucy can expect her car to depreciate at a rate of 7% per year.
Lelechka [254]

Answer:

<u>Equation: V = C * (1 - r)^t</u>

<u>Answer: $ 8,066.37</u>

Step-by-step explanation:

Let's recall that depreciation on a car can be determined by the formula:

V = C * (1 - r)^t , where:

V is the value of the car after t years,

C is the original cost

r is the rate of depreciation

t is the number of years of utilization of the car

Therefore, we have:

V = C * (1-r)^t

V = 15,500 * (1 - 0.07)⁹

V = 8,066.37 (rounding to the next cent)

5 0
3 years ago
Zeus Industries bought a computer for $2730. It is expected to depreciate at a rate of 30% per year. What will the value of the
Lostsunrise [7]
The price will be $655.47 after four years
6 0
3 years ago
11. The completion of a chemical reaction is expressed by the equation y = 300 - 4x - XP, where y is
alina1380 [7]

Answer:

The reaction ca occur at 10 degree Celsius or -14 degree Celsius.                                          

Step-by-step explanation:

We are given the following in the question:

The completion of a chemical reaction is expressed by the equation

y = 300 - 4x -x^2

where y is  the number of seconds needed to complete the reaction and x is the temperature in degrees Celsius  at which the reaction occurs.

We have to find the temperature at which the reaction occurs, if the completion time of reaction is 160 seconds.

Putting y = 160

160 = 300 - 4x -x^2\\x^2 + 4x  - 140 = 0\\x^2 + 14x -10x -140 = 0\\x(x+14)-10(x+14)=0\\(x-10)(x+14) = 0\\(x-10) =0, (x+14) =0\\x = 10, x = -14

Thus, the reaction ca occur at 10 degree Celsius or -14 degree Celsius.

5 0
2 years ago
Create a circle with a centre of (0,0) and a radius of 13
Mumz [18]

Answer:

The equation would be:

x^2+y^2=169

In the attachment!!!

<em>Hope this helps!!!</em>

<em>Sofia</em>

3 0
3 years ago
10 points
marishachu [46]

Answer:

150+12x=630

Step-by-step explanation:

The x represents the amount of months and it is multiplied by 12 because each month costs 12$. 150 have to be paid up front and this added to the monthly fee is equal to 630$

3 0
3 years ago
Other questions:
  • -10 + x + 4-5 &gt; 7x - 5
    9·2 answers
  • Suppose that four times the square of a number equals 20 times that number. What is the number?
    7·1 answer
  • Mr. Hosley has a brother that is 6 years older. Together their ages are 106. How old is each of these siblings?
    6·2 answers
  • PLEASE ANSWER THIS QUESTION FOR 45 POINTS<br><br> How do you find the frequency of these numbers?
    8·1 answer
  • Emily wins 22000$. She has to pay 10% for charity and then she decides to buy a car for 10800$. She divides the rest of them bet
    10·1 answer
  • Can somebody help me please ​
    5·1 answer
  • the scale factor of the dimensions of two similar wood floors is 5 : 4 it cost 272 to refinish the smaller wood floor at that ra
    13·1 answer
  • Use the properties of equality to simplify the equation. Tell whether the equation has zero, one, or infinitely many solutions.
    11·1 answer
  • at a snack, a milkshake costs $1.19, a cheeseburger costs $3.19, and an order of sweet potato fries costs $2.89. austin is going
    14·1 answer
  • On a blueprint, the bedroom wall is 6 in long. the scale factor is 1 to 24. what is the length of the actual wall?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!