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
masya89 [10]
3 years ago
7

A band's first song is 4 minutes, 12 seconds long and has 462 beats. The band wants to have a second song that is 3 minutes, 54

seconds long with the same beats per minute as the first song. How many beats should there be in the second song?
Mathematics
1 answer:
dimulka [17.4K]3 years ago
8 0

Answer:

429 beats

Step-by-step explanation:

The number of beats is proportional to the time of the song.

Convert the time to seconds to avoid recurring decimals.

4 minutes 12 seconds = 4×60+12=252 seconds

3 minutes 54 seconds = 4×60−6=234

seconds

Set up a direct proportion using equivalent fractions:

x234=462/252

   ←beats/←seconds

x=234×462/252

x=429 beats

You might be interested in
The Interest on $2,000 for 2 years is $320 what is the simple interest rate?
Ronch [10]

Answer:

It would be 20

Step-by-step explanation:because you have to divide 320 by 2 which equals $160 for 1 year and then divide that by 2 again would be $80 for 6 months then divide it by 2 again which would be $40 and 3 months for it then divide it by 2 again and 1 and a half months equal $20

6 0
2 years ago
Please help and show work <br> i need 17 19 and 21
Nat2105 [25]

Answer:

Step-by-step explanation:

<em>(17).</em> g(x) = x³ + 4x

f(x) = 4x + 1

( f × g )( x ) = ( x³ + 4x )( 4x + 1 ) = <em>4 </em>x^{4}<em> + x³ + 16x² + 4x</em>

<em>(19).</em> f(t) = 4t - 4

g(t) = t - 2

( 4f + 3g )( t ) = 4(4t - 4) + 3(t - 2) = 16t - 16 + 3t - 6 = <em>19t - 22</em>

<em>(21).</em> h(t) = t + 3

g(t) = 4t + 1

h(t - 2) + g(t - 2) = ( t - 2 ) + 3 + 4( t - 2 ) + 1 = t + 4t - 2 + 3 - 8 + 1 = <em>5t - 6</em>

5 0
3 years ago
Completely Factoring<br> 3x2 – 10x – 8
rusak2 [61]

Answer: (x - 4) • (3x + 2)

Step-by-step explanation:

6 0
3 years ago
The function shown is reflected across the y-axis to create a new function.
serious [3.7K]

Answer:

D. The range stays the same, but the domain changes

Step-by-step explanation:

4 0
3 years ago
Which of these graphs is the solution set for the equation y = -x?
Andrew [12]

Answer:

B

Step-by-step explanation:

y=mx+b

y=-x (y=-1x+0)

b=0

m=rise/run=-1/1

8 0
3 years ago
Other questions:
  • For questions 1-5, round the fraction or mixed number to the nearest 1/2
    12·1 answer
  • Which should come next at the end of this row of letters: a b d g?
    7·2 answers
  • A package of 8 pens costs $1.09. Milo’s work to find the unit price of the pack is shown below.
    6·2 answers
  • I wrote it down better
    7·2 answers
  • Use the graph shown to answer the question. What is the solution set for the inequality if log2(2x – 1) &gt; 2?
    6·2 answers
  • (b) Fatima starts a phone call at 18:32 The phone call finishes at 19:16
    14·1 answer
  • You invest $2,000.00 in a stock plan and another $2,000.00 in a savings account. The stock plan decreases by 7% the first year a
    10·1 answer
  • I cannot find the answer to my question
    11·1 answer
  • 2x + 8y=30 y=2 solve for x
    12·2 answers
  • Sam complete 3 math problems in 8 minutes. How long will it take to do 15 problems?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!