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rjkz [21]
3 years ago
11

Please someone help me. Im giving brainliest !!!!

Mathematics
2 answers:
prohojiy [21]3 years ago
8 0

Answer:

Each room can hold 30.

Step-by-step explanation:

90/3=30.

lys-0071 [83]3 years ago
8 0
90/3=30, each room can hold 30
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there are 20 colored markers in a package – 8 black, 4 blue, 4 red, 4 green. if two markers are selected at random, one after an
mihalych1998 [28]

If two markers are selected at random, one after another, without replacement, the probability that both will be blue = 0.0316

For given question,

there are 20 colored markers in a package – 8 black, 4 blue, 4 red, 4 green.

if two markers are selected at random, one after another, without replacement, we need to find the probability that both will be blue.

The probability that the selecting one blue marker is:

4/20

After selecting one blue marker, there are 19 markers in a package -  8 black, 3 blue, 4 red, 4 green.

The probability of selecting second blue marker would be,

3/19

So, the probability that both will be blue:

4/20 × 3/19

= 0.2 × 0.16

= 0.0316

Therefore, if two markers are selected at random, one after another, without replacement, the probability that both will be blue = 0.0316

Learn more about the probability here:

brainly.com/question/3679442

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4 0
1 year ago
Sam found a tent in his garage, and he needs to find the center height. The sides are both 5 feet long, and the bottom is 6 feet
sergiy2304 [10]

Answer:

4 feet

Step-by-step explanation:

Sam’s tent, to the nearest tenth

4 0
3 years ago
Read 2 more answers
Write two expressions where the solution is 19
PSYCHO15rus [73]
12 + 7 = 19
16 + 3 = 19
7 0
3 years ago
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Isidro wants to purchase a used scooter that costs 79.95 the sales tax is found by multiplying the price of the scooter by 0.065
OLEGan [10]

Answer:

85.15

Step-by-step explanation:

79.95 x 0.065 = 5.197

79.95 + 5.197 = 85.15

5 0
3 years ago
For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. Tell whether the discriminant of ax^2 + bx + c
Elan Coil [88]

Answer:

29) discriminant  is positive

30) discriminant  is 0

31) discriminant  is negative

Step-by-step explanation:

the graph of a quadratic function y=ax^2 + bx + c is shown. Tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.

In the graph of question number 29 we can see that the graph intersects the x axis at two points

so the equation has 2 solutions.

When the equation has two solution then the discriminant is positive

In the graph of question number 30 we can see that the graph intersects the x axis at only one point

so the equation has only  1 solution.

When the equation has only one solution then the discriminant is equal to 0

In the graph of question number 30 we can see that the graph does not intersects the x axis  

so the equation has 2 imaginary solutions.

When the equation has two imaginary solutions then the discriminant is negative

3 0
3 years ago
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