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nevsk [136]
3 years ago
12

For the Christmas dance ,the dance committee needs three hours of music. Each song is an average of 3.5 minutes . how many song

do they need
Mathematics
2 answers:
irinina [24]3 years ago
7 0
There are 60 minutes in an hour, 3 hours to fill up, therefore the problem should be 180/3.5.
They need about 52 songs.
Hope this helped!
GREYUIT [131]3 years ago
3 0
An hour is 60 minutes

there are three hours so 
60*3=180

how many times will 3.5 go into 180 so 
180/3.5=51.43 or rounded up you get 52 songs (if they're good, they'll play 52 average songs and one half legnth songs)
so they will need 52 songs

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Sam ran 3 1/4 miles on Tuesday and then ran 2 5/6 miles on Wednesday. How many total miles did Sam run ?
julsineya [31]

Answer:

6  1/12 miles total

Step-by-step explanation:

3 1/4 = 13/4

2 5/6 = 17/6        to ADD fractions, you must have a common denominator

                              I will use 12   for these

13/4 = 39/12

17/6 = 34 /12

now you can add and simplify     39/12 + 34/12 = 73/12 = 6 1/12  miles

4 0
2 years ago
A plastic bin in the shape of a cube contains 900 marbles, each with a volume of 8 in?. If the cube has side lengths of 2 feet,
qaws [65]
900 x 8 in , 2ft in cubic inches, guessing
8 0
2 years ago
A realtor's commission is directly proportional to the selling price of a house. Mr. Wiley earned a commission of $9,200 on a ho
Salsk061 [2.6K]
<span>Mr. Wiley earned a commission of $9,200 on a house that sold for $184,000.
</span><span>At this rate, Mr. Wiley's commission be on a house that sells for $250,000 = ?
commission = price of house sold
$9,200 = $184,000 
multiply both sides with $250,000
$9,200 x </span>$250,000 = $184,000 x $250,000
when the price is $250,000, the commission will be;
($9,200 x $250,000) / $184,000 = $250,000
$2300000/$184 = $250,000
$12,500 = $250,000
Thus, the commission is $12,500.

4 0
3 years ago
Use the exchange rate £1 = $1.34 to convert $67 into £.
Flauer [41]
67/1.34=50
Therefore $67=£50
3 0
3 years ago
A presidential candidate plans to begin her campaign by visiting the capitals in 44 of 5050 states. what is the probability that
defon
Part A:

Given that <span>A presidential candidate plans to begin her campaign by visiting the capitals in 4 of 50 states.

The number of ways of selecting the route of 4 specific capitals is given by

^{50}P_4= \frac{50!}{(50-4)!} =  \frac{50!}{46!} =50\times49\times48\times47=5,527,200

Therefore, the probability that she selects the route of four specific​ capitals is \frac{1}{5,527,200}



Part B:
</span>
<span>The number of ways of selecting the route of 4 specific capitals is 5,527,200.

Since </span><span>the number of ways of selecting the route of 4 specific capitals is too large it is not practical to list all of the different possible routes in order to select the one that is​ best.

Therefore, "</span><span>No, it is not practical to list all of the different possible routes because the number of possible permutations is very large."</span>
3 0
3 years ago
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