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
Ratling [72]
3 years ago
14

There are 16 books on a shelf. 7 of these books are new. The rest of them are used. What is the ratio of used books to new books

?
Mathematics
1 answer:
ZanzabumX [31]3 years ago
4 0

Answer:

9:7

Step-by-step explanation:

You might be interested in
Use theorem 7.1.1 to find {f(t)}. (write your answer as a function of s.) f(t) = t2 + 5t − 6 {f(t)} =
bulgar [2K]

General Idea:

Let f be a function defined for t\geq 0. Then the integral

L\{f(t)\}=\int\limits^\infty_0  {e^{-st}f(t)} \, dt

is said to be Laplace transform of f, provided that the integral converges.

L\{1\}=\frac{1}{s} \\ \\ L\{t^n\}=\frac{n!}{s^{n+1}} , \; \; \; n=1,\;2, \;3,...

Applying the concept:

L\{f(t)\}=L\{t^2\}+L\{5t\}-L\{6\}=\frac{2}{s^3} +\frac{5}{s^2} -\frac{6}{s}

3 0
3 years ago
Read 2 more answers
Mark bought 8 boxes a week later half of all his boxes were destroyed in a fire there are now only 20 boxes left with how many d
anzhelika [568]

9514 1404 393

Answer:

  • equation: 1/2(s +8) = 20
  • Mark began with 32 boxes

Step-by-step explanation:

Let s represent the number Mark started with. After buying 8 more, he then had s+8. After the fire, he had ...

  (1/2)(s +8) = 20

This equation can be solved by multiplying by 2, then subtracting 8.

  s +8 = 40

  s = 32

Mark began with 32 boxes.

8 0
3 years ago
Each snack at the concession
Paha777 [63]

Answer:47

Step-by-step explanation:

you have to add 86.56 to 100 and u get 186.56. then you divide the sum by 4 and u get 46.64. but you can’t buy half a snack so you have to round up. to 47

4 0
2 years ago
Reginald can afford a $1330 monthly mortgage payment. If the current
Alex787 [66]

$281,978         ....APE.X -_-

4 0
3 years ago
(3,1) a solution of 3p-4q=13
Anton [14]

3p-4q=13

Geometric figure: Straight Line

 Slope = 1.500/2.000 = 0.750

 p-intercept = 13/3 = 4.33333

 q-intercept = 13/-4 = -3.25000

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    3*p-4*q-(13)=0

Step by step solution :

Step  1  :

Equation of a Straight Line

1.1     Solve   3p-4q-13  = 0

"y=mx+b" is the formula of a straight line drawn on Cartesian coordinate system in which "y" is the vertical axis and "x" the horizontal axis.

In this formula :

y tells us how far up the line goes

x tells us how far along

m is the Slope or Gradient i.e. how steep the line is

b is the Y-intercept i.e. where the line crosses the Y axis

The X and Y intercepts and the Slope are called the line properties. We shall now graph the line  3p-4q-13  = 0 and calculate its properties

Calculate the Y-Intercept :

Notice that when p = 0 the value of q is 13/-4 so this line "cuts" the q axis at q=-3.25000

 q-intercept = 13/-4  = -3.25000

Calculate the X-Intercept :

When q = 0 the value of p is 13/3 Our line therefore "cuts" the p axis at p= 4.33333

 p-intercept = 13/3  =  4.33333

Calculate the Slope :

Slope is defined as the change in q divided by the change in p. We note that for p=0, the value of q is -3.250 and for p=2.000, the value of q is -1.750. So, for a change of 2.000 in p (The change in p is sometimes referred to as "RUN") we get a change of -1.750 - (-3.250) = 1.500 in q. (The change in q is sometimes referred to as "RISE" and the Slope is m = RISE / RUN)

Slope     =  1.500/2.000 =  0.750

Geometric figure: Straight Line

 Slope = 1.500/2.000 = 0.750

 p-intercept = 13/3 = 4.33333

 q-intercept = 13/-4 = -3.25000


7 0
2 years ago
Other questions:
  • Which ratios form a proportion?
    6·1 answer
  • Expand and simplify <br><br> (× + 1)(×^2 + 2× +3)
    12·1 answer
  • True or false? for any two nonzero integers, the product and quotient have the same sign.
    9·1 answer
  • What is the unit rate? 182miles per 6 gallons
    7·1 answer
  • Last month, when Joe took his puppy to the veterinarian, the puppy weighed 6.2 pounds. This month, the puppy weighed 8.68 pounds
    11·2 answers
  • The cost for each soda is $2.25. If your friend Calvin buys a certain number of Coca-Colas (c) and Mountain Dews (m), which answ
    15·1 answer
  • Calculate 28×13 and use roman numerals to write the equation and answer​
    9·1 answer
  • Find the amount in a continuously compounded account for the following condition. ​Principal, ​$​4000; Annual interest​ rate, 5.
    14·1 answer
  • The volume of a sphere whose diameter is 18 centimeters is _ cubic centimeters. If it’s diameter we’re reduced by half, it’s vol
    11·1 answer
  • Area =<br> Help me please :(
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!