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
Yuliya22 [10]
3 years ago
12

Mrs.Arshad Gave her class 12 minutes to read independently. Sadia read 5 1/2 pages in that time how many pages will she read in

one hour?
At that rate how many pages could sadia read in 3 hours at this rate ?

Justify how you determine how many pages sadia could Read in 3 hours
Mathematics
1 answer:
Angelina_Jolie [31]3 years ago
8 0
So 5 1/2 pages in 12 minutes
rewrite as eleven/2
Make a proportion
pages over minutes = pages over minutes
in an hour, there are 60 minutes
11/2 / 12 = x / 60
cross multiply 
(11/2 * 60) = 12x
330 = 12x 
divide both sides by 12
27.5 = x

She will read 27.5 pages in an hour.

How many pages in 3 hours?
that is 60 * 3 minutes 
180 minutes
Use the proportion of pages/minutes = pages/minutes
plug in what you are given

<span>11/2 / 12 = x / 180
Cross multiply
(11/2 * 180) = 12x
990 = 12x
divide both sides by 12
82.5 = x

She will read 82.5, or 82 1/2, pages in 3 hours (or 180 minutes ;) )

Hope this helps </span>

You might be interested in
What is the difference between -3 and 7? *
Murrr4er [49]

Answer:

4

Step-by-step explanation:

Hope this helped

6 0
3 years ago
Read 2 more answers
What is 2 dollars to 40 cents as a fraction in lowest terms?
pav-90 [236]
It is 5/1
200/40
20/4
5/1
3 0
3 years ago
Which of the following correctly completes the square for: x^2+2x=48
Ket [755]

Answer:

(x+1)²= 49, the answer is B

Step-by-step explanation:

x² + 2x = 48

x² + 2x + (2/2)² -  (2/2)²= 48 --[what we are trying to do is to complete a square by adding (2/2)² -  (2/2)²]

(x+1)²= 49, the answer is B

4 0
2 years ago
Read 2 more answers
3. Find the value of m for which the equation mx + 14 = 12 + 2 has one repeated root.
umka2103 [35]

Using the discriminant of a quadratic equation, it is found that the quadratic equation would have one repeated solution for m = -3.

<h3>What is the quadratic equation?</h3>

The quadratic equation is given as follows:

mx² + 12x - 12.

<h3>What is the discriminant of a quadratic equation and how does it influence the solutions?</h3>

A quadratic equation is modeled by:

y = ax^2 + bx + c

The discriminant is:

\Delta = b^2 - 4ac

The solutions are as follows:

  • If \mathbf{\Delta > 0}, it has 2 real solutions.
  • If \mathbf{\Delta = 0}, it has 1 real solutions.
  • If \mathbf{\Delta < 0}, it has 2 complex solutions.

For this problem, the coefficients are:

a = m, b = 12, c = -12.

Hence the discriminant is:

b² - 4ac = 144 + 48m.

We want it to be of 0, hence:

144 + 48m = 0

m = -144/48

m = -3.

More can be learned about the discriminant of a quadratic equation at brainly.com/question/19776811

#SPJ1

7 0
1 year ago
A one-topping pizza costs $15.00. Each additional topping costs $1.25. Let x be the number of additional toppings. You have $20
pantera1 [17]
So,

Our total will be equal to 20.  If we want 1 additional topping, we will have an additional $1.25.  <span>If we want 2 additional toppings, we will have an additional $2.50.  So we can just multiply the number of additional toppings by 1.25 to get the additional amount.

1.25x

However, you will have already spent $15.

1.25x + 15 = 20

This is option B.

P.S. You will be able to put exactly 4 additional toppings.</span>
3 0
2 years ago
Read 2 more answers
Other questions:
  • If you know that 4 of an item cost a certain amount, and you want to find out what one costs, which operation will you use?
    10·1 answer
  • Calculate the distance between the points!
    12·2 answers
  • <img src="https://tex.z-dn.net/?f=9x-3%20%5Cleqslant%2011x%20-%203" id="TexFormula1" title="9x-3 \leqslant 11x - 3" alt="9x-3 \l
    15·1 answer
  • 4.9t^2-2.78t-1.15=0 what is the value of T
    10·1 answer
  • How would you go about solving this? This is the half angle and double angle identities unit if that helps
    14·1 answer
  • A car depreciated by 25% during the first year. If the car was purchased for 28,000 what is the car worth today? Show your work.
    10·1 answer
  •  Kiba and Akamura went out to eat. Their bill was $ 59.76. If Kiba leaves a 7% tip and 8% tax, how much did he pay in total?
    11·1 answer
  • Choose an answer and tell me why you chose that :)
    15·1 answer
  • Pls help me im lost.
    14·1 answer
  • Which expression are of -48xyz+24xy+40xyz
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!