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
Nady [450]
3 years ago
6

Dominic books with 12 postcards in each book. He has 4 boxes with 20 coins in each box. If he gives 15 post cards to his friends

, how many postcards and coins does he have?
Mathematics
2 answers:
vlabodo [156]3 years ago
8 0
The awnser is 80 coins
Lena [83]3 years ago
5 0
How many books are there?

You might be interested in
Help! You can look at the picture please
viva [34]

Answer:

\frac{3x}{3 - 2x}

Step-by-step explanation:

Here,

f(x) = y

y =  \frac{3x}{2x + 3}

or , swapping x with y

x =  \frac{3y}{2y + 3}

now to solve for y we get

y =  \frac{3x}{3 - 2x}

now we put f inverse x instead of y

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

I am done.

4 0
3 years ago
Read 2 more answers
The extensions of the legs AB and CD of a trapezoid ABCD intersect at point E. Find the lengths of the sides of △AED if AB=5cm,
Lynna [10]

Answer:

  AE = 15 cm; ED = 18 cm; AD = 15 cm (given)

Step-by-step explanation:

ΔBEC ~ ΔAED so ...

   AD/BC = AE/BE = (BE+AB)/BE = 1 + AB/BE

Substituting given numbers (lengths in centimeters), we have ...

  15/10 = 1 + 5/BE

  1/2 = 5/BE

  BE = 10

Similarly, ...

  1/2 = 6/CE

  CE = 12

Then the unknown sides are ...

  AE = AB + BE = 5 + 10 = 15 . . . cm

  ED = CE + CD = 12 + 6 = 18 . . . cm

8 0
3 years ago
PLEASE HELP
Crank

Answer:

Listeriosis is an infection caused by the bacteria Listeria monocytogenes. People become infected by eating foods contaminated with the bacteria. Listeria may infect many different sites in the body, such as the brain, spinal cord membranes, or the bloodstream

Step-by-step explanation:

People with invasive listeriosis usually report symptoms starting 1 to 4 weeks after eating food contaminated with Listeria

5 0
3 years ago
Read 2 more answers
The scores on ms. martin's statistics quiz had a mean of 12 and a standard deviation of 3. ms. martin wants to transform the sco
yawa3891 [41]
<span>CorrectThe direction of the electric field stays the same regardless of the sign of the charges that are free to move in theconductor.Mathematically, you can see that this must be true since the expression you derived for the electric field isindependent of .Physically, this is because the force due to the magnetic field changes sign as well and causes positive charges tomove in the direction (as opposed to pushing negative charges in the direction). Therefore the result isalways the same: positive charges on the side and negative charges on the side. Because the electric fieldgoes from positive to negative charges will always point in the direction (given the original directions of</span>
4 0
2 years ago
12<br> The value of x must be greater than<br><br> a .0<br> B.1<br> C.3<br> D.7
Likurg_2 [28]

Answer:

must be greater than 7

Step-by-step explanation:

using pythagoras theorem

a^2=b^2-c^2

x^2=15^2-12^2

x^2=225-144

x^2=81

take square root both sides

√x^2=√81

x=9

and 9 is greater than 7

7 0
2 years ago
Other questions:
  • For four years, Marty Campbell invested $6,500 each year in Harley-Davidson. The stock was selling for $84 in 2014, $72 in 2015,
    6·1 answer
  • Which of the following has a graph that is a straight line? (4 points) Equation 4: y = 3x3 Equation 3: y = 2x2 + 4 Equation 1: y
    9·2 answers
  • You have an initial amount of $55 in a savings account and you deposit an equal amount into your account each week. After 6 week
    15·2 answers
  • 23÷1,624 5th grade math
    15·2 answers
  • Find the value of x y and z​
    9·1 answer
  • Which three lengths could be the lengths
    14·1 answer
  • 10 dan büyük doğal sayılar 50 den küçük doğal sayılar 7 nın katı olan pozitif tam sayilar​
    9·1 answer
  • Anyone help ASAP pls!!
    10·2 answers
  • Please someone help???ty!!
    12·1 answer
  • Help pls im confused
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!