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3 years ago

A boat goes 24 miles at a constant speed in 4 hours against a river current.

Mathematics

1 answer:

Ne4ueva [31]3 years ago

7 0

Answer:

8 miles per hour.

Step-by-step explanation:

24miles in 4 hours = 24/4=6 miles per hour.

24 miles in 3 hours = 24/3=8 miles per hour. The boat going with the current of the river is traveling at 8 miles per hour.

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Name Guided Practice DO Do You Understand? 1. If the orchard has 200 seedlings and 12 are planted in each row, how many rows wil

marshall27 [118]

Answer:

16 rows, 8 seedlings left.

Step-by-step explanation:

Divide 200 by 12, since 200 seedlings are going to be split in 12 groups in order to fill the rows.

200 ÷ 12 = 16 with a remainder of 8.

The remainder is basically what is left.

Since 12 seedlings are planted in each row, 8 seedlings is not enough to completely fill the row. So, the answer is 16 rows with 8 seedlings left.

Hope this helped !

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2 years ago

A simple random sample of 64 observations was taken from a large population. The sample mean and the standard deviation were det

iragen [17]

Answer:

The correct option is d

Step-by-step explanation:

From the question we are told that

The sample size is n = 64

The mean is $\= x = 320$

The standard deviation is $\sigma = 120$

Generally the standard error of the mean is mathematically represented as

$\sigma_x = \frac{\sigma}{ \sqrt{n} }$

=> $\sigma_x = \frac{120}{ \sqrt{64} }$

=> $\sigma_x =15$

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3 years ago

In need help asap-10 points

Dmitry [639]

Answer:

9.8 km

Step-by-step explanation:

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3 years ago

What is the volume of this figure?

umka2103 [35]

Answer:216

Step-by-step explanation:

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2 years ago

78 * 40

Debora [2.8K]

Answer:

3120

Step-by-step explanation:

step 1:multiply 8 with 0 and 7 with 0

step 2:add a 0 in the end and multiply 8 with 4 . you get 32. take 2 and carry over 3. multiply 7 with 4. you get 28 . add 3 you get 31. now add. you get 3120

3 0

3 years ago

Read 2 more answers