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3 years ago

If elephant grass grows 2 1/3 inches a day, how many inches will it grow in 8 days?

Mathematics

2 answers:

geniusboy [140]3 years ago

8 0

2 1/3 * 8 = 16 8/3 or 18 2/3 inches in 8 days.

Ksju [112]3 years ago

6 0

Answer: The required length by which the elephant grows in 8 days is $18\dfrac{2}{3}~\textup{inches}.$

Step-by-step explanation: Given that an elephant grows $2\dfrac{1}{3}$ inches a day.

We are to find the length by which it grow in 8 days.

We will be using the UNITARY method to solve the given problem.

In 1 day, the length by which the elephant grow is

$2\dfrac{1}{3}=\dfrac{7}{3}~\textup{inches}.$

Therefore, the length by which the elephant grow in 8 ways is given by

$\dfrac{7}{3}\times8=\dfrac{56}{3}=18\dfrac{2}{3}~\textup{inches}.$

Thus, the required length by which the elephant grows in 8 days is $18\dfrac{2}{3}~\textup{inches}.$

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goblinko [34]

Answer:

C. 786,000 hectare

Step-by-step explanation:

This question can be solved by proportions, using conversion of units.

Each hectare has 10 000 square meters.

So 7,860 square meters is equal to:

7,860*10000 = 786,000 hectares

The answer is given by option C.

4 0

3 years ago

Genghis Khan organized his men into groups of 10 soldiers under a "leader of 10." Ten "leaders of 10" were under a "leader of 10

Drupady [299]

Answer:

(a) 11110 soldiers

(b) 6404 soldiers

Step-by-step explanation:

Following that logic you can express the men of any level of his organization as 10^n, where n is the level. Some examples:

Level 1: 10^1 = 10

Level 2: 10^2 = 100 Each of the 10 men in level 1 are in charge of 10 men in the level 2 (10 * 10 = 100)

(a) if the lowerst level of the organization has 10,000 soldiers, then the lowest level is:

10^n = 10,000

n = 4

The total number of men under him is:

10^4+10^3+10^2+10^1 = 11110 (Assuming that he is the leader of the first 10 leaders)

(b) In this case the lowest level has 5763, you have a 1 leader for every 10 soldiers, then the leaders needed for the lowest level is:

5763/ 10 = 576.3 = 577 leaders

These 577 leaders also have their own leaders for every 10:

577/10 = 57.7 = 58 leaders

And these also have their own leaders:

58 / 10 = 5.8 = 6

And again We assume these 6 are directly under Genghis Khan

Total soldiers:

5763 + 577 + 58 + 6 = 6404 soldiers

6 0

3 years ago

The commercial for the new Meat Man Barbecue claims that it takes 10 minutes for assembly. A consumer advocate thinks that the c

Andrews [41]

Answer:

There is enough evidence to make the conclusion that the population mean amount of time to assemble the Meat Man barbecue is not equal to 10 minutes (P-value=0.009).

Step-by-step explanation:

We have to perform an hypothesis test on the mean.

The null and alternative hypothesis are:

$H_0: \mu=10\\\\H_1: \mu \neq 10$

The significance level is $\alpha=0.05$ .

The test statistic t can be calculated as:

$t=\frac{M-\mu}{s/\sqrt{N} } =\frac{11.2-10}{3.1/\sqrt{50} }=2.737$

The degrees of freedom are:

$df=N-1=50-1=49$

The P-value (two-tailed test) for t=2.737 and df=49 is P=0.00862.

This P-value (0.009) is smaller than the significance level, so the effect is significant. The null hypothesis is rejected.

There is enough evidence to make the conclusion that the population mean amount of time to assemble the Meat Man barbecue is not equal to 10 minutes.

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3 years ago

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Umnica [9.8K]

Answer:

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3 0

3 years ago

weqwewe [10]

Answer:

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Step-by-step explanation:

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6/2 = 3

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Hence, the correct answer is:

b. g(x) = ƒ(3x) ..

6 0

3 years ago