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
11111nata11111 [884]
3 years ago
13

A bookstore had 90 copies of a magazine. Yesterday, it sold 1/6 of them. Today, it sold 1/5 of what remained. How many copies do

es the bookstore have left
Mathematics
1 answer:
MA_775_DIABLO [31]3 years ago
6 0

Answer:

60 copies

Step-by-step explanation:

first you take 1/6th of the original 90 copies which is 15 and subtract that from the 90, you are left with 75 copies which is how many they had left at the end of yesterday. then you take 1/5th of the 75 copies that are left which is also 15 and you subtract that from 75 and you get 60. that's why at the end of today there are 60 copies left.

You might be interested in
What are some ways to decribe the relationships between sets of numbers
lina2011 [118]
By their increase or decrease
4 0
3 years ago
Whoever gets all three questions correct I will mark them brainlist
Mrac [35]

Answer:

#1- z = 75

#2- t = 1.33

Step-by-step explanation:

<em>HOPE THIS HELPS!!! </em><em>:)</em>

4 0
3 years ago
QUESTION :-
Galina-37 [17]

Answer:

  • 92000

Step-by-step explanation:

<u>Given:</u>

  • I = 5% = 0.05
  • t = 2 years
  • Let the sum is x.

<u>Simple interest:</u>

  • SI = x*2*0.05 = 0.1x

<u>Compound interest:</u>

  • CI = x*(1 + 0.05)² - x = 1.1025x - x = 0.1025x

<u>The difference is 230:</u>

  • 0.1025x - 0.1x = 230
  • 0.0025x = 230
  • x = 230/0.0025
  • x = 92000
3 0
3 years ago
Suppose that an insect population’s density, in thousands per acre, during year n, can be modeled by the recursive formula: a1 =
vlabodo [156]

Answer:

The population alternates between increasing and decreasing

Step-by-step explanation:

<u><em>The options of the question are</em></u>

A) The population density decreases each year.

B) The population density increases each year.

C) The population density remains constant.

D) The population alternates between increasing and decreasing

we have

a_n=2.9(a_n_-_1)-0.2(a_n_-_1)^2

a_1=8

Find the value of a_2

For n=2

a_2=2.9(a_1)-0.2(a_1)^2

a_2=2.9(8)-0.2(8)^2=10.4

Find the value of a_3

For n=3

a_3=2.9(a_2)-0.2(a_2)^2

a_3=2.9(10.4)-0.2(10.4)^2=8.528

For n=4

a_4=2.9(a_3)-0.2(a_3)^2

a_4=2.9(8.528)-0.2(8.528)^2=10.1858

For n=5

a_5=2.9(a_4)-0.2(a_4)^2

a_5=2.9(10.1858)-0.2(10.1858)^2=8.7887

therefore

The population alternates between increasing and decreasing

7 0
3 years ago
Read 2 more answers
What are the coordinates of the image of the point (-6, -4) after a 90º rotation followed by a translation 10 units up?
Rina8888 [55]
Is there an answer choice?\

4 0
3 years ago
Other questions:
  • In parallelogram ABCD, MZABD = 83º, m_BDA = 34°, and m_BCD =​
    6·1 answer
  • Please answer ASAP will mark brainilest ​
    10·1 answer
  • Convert 88 ounces to pounds.<br> A.0.18 pounds<br> B.5.5 pounds<br> C.1408 pounds
    8·2 answers
  • Express 100,0000 as a power of 10
    5·2 answers
  • Find the coordinates of the midpoint of the segment with the endpoints<br> C(3,5) and D (9,5)
    11·2 answers
  • 1
    8·2 answers
  • Water flows from a tank with a rectangular base measuring 80cm by 70cm into another tank with a squarebase of side 60cm. If the
    13·1 answer
  • 3-(1/3) to the 4th power
    6·1 answer
  • A punter kicks a football into the air. The pathway of the football can be represented by the equation h=-16t^2+82t (where t= ti
    5·2 answers
  • 3+3+67+7+4+6+78+68+22+71+100-100=<br> FIND THE ANSWER
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!