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
inysia [295]
3 years ago
6

3000 exercise books are arranged into 3 piles. The first pile has 10 more books than the second pile. The number of books in the

second pike is twice the number of books in the third pile. How many books are there in the third pile.
Mathematics
1 answer:
pochemuha3 years ago
7 0

Answer:

598 books

Step-by-step explanation:

Let x be the number of books in the 3rd pile. We will have then:

1st pile: 2x + 10

2nd pile: 2x

3rd pile: x

3000 = (2x + 10) + (2x) + (x)

3000 = 5x + 10

3000 - 10 = 5x

2990 = 5x

2990/5 = x

x = 598 books in the third pile!

We can check that:

3000 = 2*598 + 10 + 2*598 + 598

3000 = 1196 + 10 + 1196 + 598

3000 = 3000 CHECK!

You might be interested in
$745 is deposited into an account that earns 4% simple interest for 8 years.
lara [203]

Step-by-step explanation:

Snskqkqnw wkskskwnw wnwnnwnw wkwlwkw w wlsks q wksos w ww wkskskwnw w. Ws sjsjqnqbnwnw qnskskdixixkndnsw q wbqjwjwjwb w wsbwwbwhsuxuuxjxjdjdbwbwbdbdbddbndjsjdjdjsjwjwhwhwhwhwhwbwbs s. S sbsbsbdnsjjd

6 0
3 years ago
Read 2 more answers
For the standard normal curve, find the z-score that corresponds to the 30th percentile. -0.47 -0.98 -0.53 -0.12
Nata [24]
We are looking for the Zo score that corresponds to the 30th percentile.
 We use the table for the standard normal distribution.
 From P (Z <Zo) = 0.3 we search for Zo.
 Then we look in the table for the value of Zo that corresponds to 0.3.
 Hence, the approximate value is -0.53.
 The option is the third
7 0
3 years ago
What would have been the elevation in the valley if he had started at an elevation 300 meters below sea level?
Masja [62]

Answer: -300 meters

Step-by-step explanation: If he started from 0 (sea level) and went 300 meters under, meaning 0-300=-300 meters.

4 0
2 years ago
Read 2 more answers
A tourist in France wants to visit 8 different cities. If the route is randomly selected, what is the probability that she will
Harlamova29_29 [7]

Answer:

Probability p( selecting 8 cities alphabetically) = 2.48×10^-5

Step-by-step explanation:

Number of possible ways of choosing 8 cities=Permutation P(n,k) = n!/(n-k)!

P(8,8)= 8!/(8-8)! = 8! = 40,320

Probability (selecting 8 cities alphabetically) = 1/40320 = 2.48×10^-5

7 0
3 years ago
Read 2 more answers
Find the area of the irregular polygon. Round your answer to the nearest tenth if necessary.
kvasek [131]
The answer is 60 square cm

How to solve:

3 0
3 years ago
Read 2 more answers
Other questions:
  • PLEASE HELP I GIVE THANKS
    11·2 answers
  • 2. Select all solutions to (x - 2)2 = -16.
    9·1 answer
  • State the system of linear inequalities which satisfies the following shaded regions. help ??asappp
    5·1 answer
  • What is the value of a?<br><br> 5 units<br> units<br> units<br> 7 units
    15·2 answers
  • What is the answer to -3(z+1)+11&lt;-2(z+13)
    13·2 answers
  • Intensify the point in figure 2 that corresponds to point him in figure 1
    6·1 answer
  • Help please""..".....................
    14·1 answer
  • The spinner is divided into 4 equal parts: yellow, green,blue,and red. Dorian says that if you spin the spinner twice, then ther
    15·2 answers
  • ( There are two similar triangles on the graph below. Use the graph to answer the questions. You must answer each question AND e
    11·2 answers
  • Rashu deposited Rs 150000 in a bank .If bank provides 6% p.a interest ,find the compound amount and compound interest after 2 ye
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!