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
mixas84 [53]
3 years ago
11

In the band there are twice as many tubas as French horns and three more trumpets than tubas. Five times the number of trumpets

equals nine times the number of French horns, plus triple the number of tubas. How many of each kind of instrument are there?
Mathematics
1 answer:
GenaCL600 [577]3 years ago
8 0

Answer:

3 French horns

6 tubas

9 trumpets

Step-by-step explanation:

Let the number of French horns be x.

<u>Number of French horns</u> = x

There are twice as many tubas as French horns, so

<u>Number of tubas</u> = 2x

There are three more trumpets than tubas, so

<u>Number of trumpets</u> = 2x + 3

Five times the number of trumpets equals nine times the number of French horns, plus triple the number of tubas, so

5(2x+3)=9x+3\cdot 2x\\ \\10x+15=9x+6x\\ \\10x+15=15x\\ \\15=15x-10x\\ \\15=5x\\ \\x=3\\ \\2x=6\\ \\2x+3=6+3=9

You might be interested in
24% students in a clan were absent in a day .If 38 students were present ,what is the total strength in the clan
Lemur [1.5K]

Answer:

50 students

Step-by-step explanation:

24% students in a clan were absent in a day .

Hence, the Percentage of students present is calculated as:.

= 100 % - 24 %

= 76%

From the question, we know that:

If 38 students were present ,what is the total strength in the clan

The total strength of the clan = Total number of students. This is calculated as:

76% × x = 38 students.

76/100 × x = 38

76x /100 = 38

Cross Multiply

76x = 38 × 100

x = 3800/76

x = 50 students

5 0
3 years ago
It took Jean 1/2 hour to complete 3/8 of a math problem
skad [1K]
Ok, if you say so. Jean took 1/2 hour to complete 3/8 of a math problem.


8 0
3 years ago
Read 2 more answers
ASAAPPP!! Which of the following exponential equations could be represented by the table below?
Ne4ueva [31]

Answer:

Option C

Step-by-step explanation:

Just took the quiz and it was right.

7 0
4 years ago
Read 2 more answers
Before a party, Audrey goes to the store with $55. She spends $52.92 on 12 cases of soda.
labwork [276]

Then what’s the question

3 0
4 years ago
Determine the intercepts of the line.
Harlamova29_29 [7]
The y-int is (0, 0.4) and the x-int is (0.3,0).
7 0
4 years ago
Other questions:
  • A principal of $2000 is invested at 6% Interest, compounded annually. How much will the investment be worth after 11 years
    12·1 answer
  • Simplify -62 ÷ 12 - 2(-7).
    15·2 answers
  • If a shirt is 18 dollars, with a 60% discount, what would be the original price of the shirt?
    6·1 answer
  • How many solutions does the system have?Explain
    10·1 answer
  • Note: Enter your answer and show all the steps you use to solve this problem in the space provided.
    13·1 answer
  • State the domain and range of each relation.
    9·1 answer
  • Max is spending the afternoon at the ice rink with friends. it costs $7.00 to rent skates for a day, and $4.00 for each hour of
    12·1 answer
  • If two men walk in opposite directions for 8 meters then turn left and walk six meters how far apart are they
    10·1 answer
  • What is the solution to the system y=4x+3 y=-1/4x+3
    5·1 answer
  • Directions: From the graph, write the linear equation in slope-intercept form
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!