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
juin [17]
3 years ago
11

Ten percent of the reds are added to twenty percent of the blues, and the total is 24. Yet the product of the number of reds and

3 exceeds the number of Blues by 20. How many are red and how many are blue?
Mathematics
1 answer:
salantis [7]3 years ago
5 0
0.10r + 0.20b = 24
3r = b + 20....b = 3r - 20

0.10r + 0.20(3r - 20) = 24
0.10r + 0.60r - 4 = 24
0.70r = 24 + 4
0.70r = 28
r = 28/0.70
r = 40 <=== there are 40 reds

0.10r + 0.20b = 24
0.10(40) + 0.20b = 24
4 + 0.20b = 24
0.20b = 24 - 4
0.20b = 20
b = 20/0.20
b = 100 <=== there are 100 blues

You might be interested in
Geoff charges 27$ for 3 hours of swimming lessons
igor_vitrenko [27]

Answer: 27/3=9 which means 9$ per hour

32/4=8 which means 8$ per hour

Step-by-step explanation:

Answers is annie deal is the best

6 0
3 years ago
Read 2 more answers
I need the answer for these.<br> 1a: <br> 1b:<br> 1c:
Fantom [35]

1a) 8 / (1/2) = 16 * 3 = 48


1b) 3sqrt(49) = 3 * 7 = 21


1c) (5+2)(-8) / (-2)^3 -3


(7*-8) / (-8 -3)


-56/-11


56/11

3 0
3 years ago
A professor wants to know how undergraduate students at X University feel about food services on campus, in general. She obtains
hammer [34]

Answer:

15000

Step-by-step explanation:

Given that a professor wants to know how undergraduate students at X University feel about food services on campus, in general. She obtains a list of email addresses of all 15,000 registered undergraduates from the registrar’s office and mails a questionnaire to 300 students selected at random.

Only 150 questionnaires are returned.

So the sample size changed to 150. But population is the number of registered undergraduates which do not change.

Population size = 15000

8 0
3 years ago
Are the two triangles similar? Explain your answer.
Sveta_85 [38]

Answer:

No

Step-by-step explanation:

Two triangles are  similar if their corresponding angles are congruent and the corresponding sides are in proportion  They  are the same shape, but not necessarily the same size

Triangle ABC  54 +68 +  58 = 180

Triangle EFG    68 +63 +49 = 180

In this case their corresponding angles are nor congruent

8 0
3 years ago
In 2007 the population of the town of Cartersville was 24,455. The population growth can be represented by the formula P = 24,45
Triss [41]
P = 24455 (1.03)x
30,000/24455 (1.03) < x
The year must be > 1.19 + 2007, or 2008.19, which means in 2009, or in 2008 + 3 months
3 0
3 years ago
Other questions:
  • ​ A sample of n = 9 college students is used to evaluate the effectiveness of a new Study Skills Workshop. Each student’s grade
    10·1 answer
  • Which ordered pair is not a point on the graph of y = 1/2x - 7
    12·1 answer
  • Is one for greater than listen or equal to 0.4
    9·1 answer
  • Ken wants to sell some of the baby angelfish when they are old enough. He wants to sell 24 of the angel fish for 40 cents each.
    14·1 answer
  • 20+(5 + 7) = x - 14 I need help take your time
    6·2 answers
  • Find the surface area of the prism.<br> 2 om<br> Som<br> 17 cm<br> lem?
    5·1 answer
  • Pleaaaaaasssseeeeee help me with this you
    14·2 answers
  • Please help me ASAP im struggling :(
    6·1 answer
  • Suppose you had 7 counselors available. How many campers could you have?
    7·1 answer
  • Find the line’s slope and a point line (HELP PLEASE)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!