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umka21 [38]
3 years ago
9

(1 point)

Mathematics
1 answer:
jonny [76]3 years ago
6 0

Answer:

Step-by-step explanation:

i think its b or c

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40% of an hour in minutes and secs
olga55 [171]

Answer:

<em>40% of an hour </em><em>equals: </em><em>24 minutes </em>

<em>40% of an hour also </em><em>equals: </em><em>1440 seconds</em>

<u>Skills needed: Time Units Conversion</u>

Step-by-step explanation:

1) First, we need to understand how to convert between hours, minutes, and seconds.

There are 60 minutes in 1 hour ==> 1 hour = 60 minutes

There are 60 seconds in 1 minute ==> 1 minute = 60 seconds

- This means that there are 3600 seconds in 1 hour (60*60=3600)

- This also means that there are 60 minutes in 1 hour

2) We are trying to find how many minutes (or seconds) 40% of an hour is.

---> When converted to decimal, 40\%=\frac{40}{100}=0.4

40% of an hour = 0.4 hours

Since there are 60 minutes in an hour, there are 60*0.4 minutes in 0.4 hours. 60*0.4=24 so, 24 minutes in 0.4 hours.

Since there are 3600 seconds in an hour, there are 3600*0.4 seconds in 0.4 hours. 3600*0.4=1440 so, 1440 seconds in 0.4 hours.

3 0
2 years ago
Read 2 more answers
A starting lineup in basketball consists of two guards, two forwards, and a center. (a) a certain college team has on its roster
julsineya [31]

1 . Consider lineups without x. You have to select

  • 2 guards from 5 quards;
  • 2 forwards from 3 forwards;
  • 1 center from 4 centers.

It can be made in

C_5^2\cdot C_3^2\cdot C_4^1=10\cdot 3\cdot 4=120 different ways.

2. Consider lineups with x as guard. You have to select

  • 2 guards from 6 quards (one of them must be x);
  • 2 forwards from 3 forwards;
  • 1 center from 4 centers.

It can be made in

C_5^1\cdot C_3^2\cdot C_4^1=5\cdot 3\cdot 4=60 different ways.

3. Consider lineups with x as forward. You have to select

  • 2 guards from 5 quards;
  • 2 forwards from 4 forwards (one of them must be x);
  • 1 center from 4 centers.

It can be made in

C_5^2\cdot C_3^1\cdot C_4^1=10\cdot 3\cdot 4=120 different ways.

Therefore, the total number of different lineups is

120+60+120=300.


5 0
3 years ago
Read 2 more answers
Samule wants to use $28 to buy batteries that cost $5.60 each. How many batteries can Samuel buy?
kotegsom [21]

Samuel can only buy 5 batteries because the greatest common factor is 5

8 0
4 years ago
It took Mary 40 minutes to run 8 laps around the playground, if she spent the same time running each lap, how long would it take
Sergeeva-Olga [200]

Answer:

it should take her 45 minutes to run 9 laps

Step-by-step explanation:

40/8 = 5

9*5 = 45

8 0
3 years ago
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The equation of the graphed line is 2x-3y=12 what is the x-intercept of the graph ?
Natali [406]

Answer:

(6,0)

Step-by-step explanation:

7 0
3 years ago
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