Ask question

Ask question

All categories

2 years ago

8

Arnold takes 12 minutes to swim 10 lengths of a pool whose length is 50 meters. If he swims at a constant speed, how long does i

t take Arnold to swim 1 kilometer?

1 answer:

Phoenix [80]2 years ago

5 0

It will take him 240 min and if u convert that it will take him 4 hours

You might be interested in

Please help me !! I need help ASAP

vlada-n [284]

Answer:

1/5

Step-by-step explanation:

3 0

3 years ago

AB is included between<br><br> A. BC and AC<br> B. C. < A and D. AB and BC

Novay_Z [31]

Answer:

Option C.

Step-by-step explanation:

By the property of unique triangles (ASA), one side is included between the two angles.

By this property, if included side of the triangle ABC is AB then this side will be included between the two angles A and B.

Therefore, $\bar{AB}$ is included between ∠A and ∠B.

Option C. will be the answer.

5 0

3 years ago

Need the missing length

Gala2k [10]

Answer:

10

Step-by-step explanation:

The side to the right is 15. The side to the left is 5. You can subtract these two to find the length.

3 0

3 years ago

Read 2 more answers

Suppose that you believe that contractor 1 is twice as likely to win as contractor 3 and that contractor 2 is three times as lik

Ray Of Light [21]

Answer:

probability that contractor 1,2 and 3 win is 33%,50% and 17% respectively

Step-by-step explanation:

assuming that there are no other contractors then:

probability that 1 , 2 or 3 win = 1

denoting as X= probability that contractor 3 wins , then assuming that only one wins , we have

probability that 1 , 2 or 3 win = 1

probability that contractor 1 wins + probability that contractor 2 wins + probability that contractor 3 wins = 1

2*P(X) + 3*P(X) + P(X) = 1

6*P(X) = 1

P(X) =1/6

then

-probability that contractor 1 wins = 2/6 (33%)

-probability that contractor 3 wins = 3/6 (50%)

-probability that contractor 3 wins = 1/6 (17%)

3 0

3 years ago

A) American households spent an average of about $44 in 2007 on Halloween merchandise such as costumes, decorations and candy. T

anygoal [31]

A)

<h3>The sample mean is 52</h3><h3>The claimed population mean is 44</h3>

---------

The sample mean is the mean found in the survey (of the sample of people). The sample mean is found by adding up the values and dividing by the sample size n. The larger n gets, the closer the sample mean should get to the population mean. This is assuming the sample is random and representative of the population.

The population mean is a claim made by another study/survey/etc. Usually generalized statements such as "Americans spent an average of X dollars (in year Y)" would have X be considered the population mean.

==================================

B)

<h3>Sample mean is 3.42</h3><h3>Claimed population mean is 3.56</h3>

--------

Same idea as part A, but we're using different numbers and a different problem context.

==================================

Note: The year numbers and the sample sizes are not used to answer any of the four questions above.

5 0

3 years ago