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3 years ago

Gabriella swims 2 laps per minute. What is the associated rate? ___ minute per lap

Mathematics

2 answers:

Leokris [45]3 years ago

7 0

Answer:

The answer is D.

Step-by-step explanation:

It is given that Gabriella swims 2 laps for 1 minute. So in order to find how many minutes did he swim for each lap, you have to divide it by 2 :

2 laps = 1 minute

2 laps ÷ 2 = 1 minute ÷ 2

1 lap = 1/2 minute

= 30 seconds

Test :

Gabriella swim 1/2 min per lap. So if he swim 2 laps, you have to multiply it by 2 :

1/2 × 2 = 1 minute

Dominik [7]3 years ago

5 0

Answer:

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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3 years ago

Determine all the factors for the following expression(Note: you will need to use the Rational Root Theorem more than one time)

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ANSWER

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3 years ago

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Evaluate at the given value 4x^2+6x-5 when x=-3

malfutka [58]

That is 4(-3)^2 + 6(-3) - 5 = 36 - 18 - 5 = 13 Answer

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3 years ago

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1 3/4+1/6+____=7 1/2 Plz help

Mademuasel [1]

Answer:

7/4 +1/6 +X=15/2

1/6+X=15/2-7/4

1/6+X=30/4-7/4

X=23/4 - 1/6

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5.58333

Step-by-step explanation:

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3 years ago

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25% of all who enters a race do not complete. 30 haveentered.

nikklg [1K]

Answer:

The probability that exactly 5 are unable to complete the race is 0.1047

Step-by-step explanation:

We are given that 25% of all who enters a race do not complete.

30 have entered.

what is the probability that exactly 5 are unable to complete the race?

So, We will use binomial

Formula : $P(X=r) =^nC_r p^r q^{n-r}$

p is the probability of success i.e. 25% = 0.25

q is the probability of failure = 1- p = 1-0.25 = 0.75

We are supposed to find the probability that exactly 5 are unable to complete the race

n = 30

r = 5

$P(X=5) =^{30}C_5 (0.25)^5 (0.75)^{30-5}$

$P(X=5) =\frac{30!}{5!(30-5)!} \times(0.25)^5 (0.75)^{30-5}$

$P(X=5) =0.1047$

Hence the probability that exactly 5 are unable to complete the race is 0.1047

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3 years ago