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scoray [572]
3 years ago
9

A box of colored pencils contains exactly 6 red pencils. The probability of choosing a red pencil from the box is 2/7. How many

of the pencils in the box are not red? *
1 point
A. 5
B. 15
C. 21
D. 30
Mathematics
1 answer:
ZanzabumX [31]3 years ago
4 0

Answer:

B.21

Step-by-step explanation:

Calculator

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Given the speeds of each runner below, determine who runs the fastest.
alexandr402 [8]

Answer:

Brooke

Step-by-step explanation:

We can solve this by figuring out how far each person runs a second

Stephanie runs 12 feet a second so nothing needs to be done here

Liz runs 306 feet in 38 seconds. To solve for the distance ran in 1 second we can divide (306/38)= around 8 feet

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5 0
2 years ago
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Ratio of boys to girls
adoni [48]

Answer:

→Boys=6

→Girls=14

Step-by-step explanation:

Solution,\\\\Ratio\:of\:boys\:to\:girls=3:7\\\\Total\:students=20\\\\Let,\\\\\hookrightarrow Boys=3x\\\\\hookrightarrow Girls=7x\\\\Now\:we\: have,\\\\\hookrightarrow 3x+7x=20\\\\\hookrightarrow 10x=20\\\\\hookrightarrow x=20/10=2\\\\Again,\\\\\hookrightarrow Boys=3x=3\times2=6\\\\\hookrightarrow Girls=7x=7\times2=14

7 0
1 year ago
A researcher posts a newspaper advertisement offering $10 in exchange for participation in a short study. The researcher accepts
postnew [5]

Answer:

It is not a valid sample because it is not a random sample of the population.

Step-by-step explanation:

the only one that makes sense

5 0
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