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vova2212 [387]
3 years ago
11

a class of 25 students shares a class set of 100 markers. on a day with 5 students absent, which statement is true

Mathematics
2 answers:
padilas [110]3 years ago
7 0
Each student can have 5 markers
9966 [12]3 years ago
7 0

Answer: For each student, there are 5 markers.

Step-by-step explanation: ratios 20:100     1:5

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-27 x -2 = 54
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3 years ago
You are presented with three urns. each urn has 10 marbles. in addition, each urn holds only black or red marbles. urn 1 has 3 r
Pachacha [2.7K]
To calculate this probability we must take into account that there is the same probability that any of the 3 urns is chosen.
 This probability is:
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 Urn 2 contains 2 black and 8 marbles network
 Urn 3 contains 5 black marbles and 5 red marbles.

 The probability of obtaining a black marble in Urn 1 is 7/10.
 The probability of obtaining a black marble in Urn 2 is 2/10
 The probability of obtaining a black marble in Urn 3 is 5/10.

 Then we look for the probability of obtaining a black marble from urn 1 or a black marble from urn 2 or a black marble from urn 3. This is:
 P (U1yB) + P (U2yB) + P (U3yB)
 So:
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 The probability that it is a black marble is 46.67%
5 0
3 years ago
Which operation would you do third in the following problem?
zaharov [31]

Answer:

I believe it is C. division

3 0
3 years ago
Read 2 more answers
NEED HELP PLEASE
postnew [5]

Answer:

It goes over the goal post by 6 feet

Step-by-step explanation:

The football will be at the same x position as the goal when x = 40. When x = 40, y = -0.03 * 40² + 1.6 * 40 = 16. The height of the goal post can be represented by the equation y = 10. Since 16 > 10, the football goes over the goal post by 16 - 10 = 6 feet.

3 0
3 years ago
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The width of the wall is X +2 feet in the diagram if the perimeter of the wall is 6X +10 feet what is the length of the wall
Rom4ik [11]

Answer:

Hope this will help you. Here you have to use the formula P = 2(l+b)

5 0
3 years ago
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