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koban [17]
2 years ago
15

In a classroom of 20 students, 70% of them have brown eyes. If a teacher picks two students at random to pass out supplies, what

is the probability he chooses two students without brown eyes?​
Mathematics
1 answer:
antiseptic1488 [7]2 years ago
4 0

Answer:

6/20 can I get brainliest pleast

Step-by-step explanation:

\frac{70}{100}  \times 20 = 14 \\ 20 - 14 = 6 \\

there is a chance that the teacher will pick a student without brown eyes 6/20 times

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Solve using the quadratic formula 2x^2 + 7x - 15 = 0
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Answer:

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Step-by-step explanation:

2x²+7x-15=0

Divide by 2:

x²+7x/2-15/2=0

x=-7/2/2 ± √49/4(4)+15/2

  =-7/4 ± √49/16+120/16

  =-7/4± √169/16=-7/4 ±13/4

  =6/4 or -20/4

   =1.5 or -5

3 0
2 years ago
If Store B sells 12 bottles for $3.50... What is the price for 1 bottle at Store B?
Lena [83]

Answer:

0.29 cents a bottle at store B

Step-by-step explanation:

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3 years ago
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Rzqust [24]

Answer:

About 1/4 scored higher and 3/4 scored lower

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About 1/4 scored higher and 3/4 scored lower

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1 year ago
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shusha [124]

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3 years ago
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The variables x and y have a proportional relationship: when x is 5, y is 8.
Alenkasestr [34]

Answer:

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