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3 years ago

the moon takes 29 1/2 days to pass through its phases. explain why lunar calendar would be inaccurate.

2 answers:

8 0

Theluner calender would be inaccurate because it doesnt shouw the full 29 and a half days as the moon turns through its phases

alexira [117]3 years ago

3 0

Step-by-step explanation:

Consider that one cycle of the moon phases would be considered as one month. This would mean that in 29 months one month would be over. The 1/2 would not be considered as one day. So, at the end of 12 months the 1/2 days would add up and you would end up with 12×1/2 = 6 extra days.

In the gregorian calender the revoultion around the sun is considered as the year which takes 365.25 days. The months are arranged according to 31 or 30 days. However at the end of 4 years we get one whole day. Hence, the leap has 366 days.

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3 years ago

Elvis and $74 .50 a month.. how much does he earn to the nearest one penny.

sdas [7]

Answer:

Part A

12 months a year means

%74.5 x 12 = $894

Part B

4 weeks in a month means

$74.5 ÷ 4 = $18.625

But rounded to the nearest penny. . .

$18.62

because in the thousandths place was a 5 and you round up when there is a 5 or above

Part C

We will go with 31 days in a month, but I will also do 30 for you

$74.5 ÷ 30 = $2.48333

But rounded to the nearest penny. . .

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But rounded to the nearest penny. . .

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3 years ago

7/10 + 2/10 , 13/16+ 2/16 , 4/5 + 1/5 , 7/15 + 2/15 , 9/20 + 3/20 , 5/8 + 1/8 . All in simplist form.

blondinia [14]

Hello!

<h3><em><u>Answers</u></em></h3>

1. $\frac{7}{10} + \frac{2}{10} = \frac{9}{10}$ Simplest form: $\frac{9}{10}$

2. $\frac{13}{16} + \frac{2}{16} = \frac{15}{16}$ Simplest form: $\frac{15}{16}$

3. $\frac{4}{5} + \frac{1}{5} = \frac{5}{5}$ Simplest form: $\frac{1}{1}$

4. $\frac{7}{15} + \frac{2}{15} = \frac{9}{15}$ Simplest form: $\frac{3}{5}$

5. $\frac{9}{20} + \frac{3}{20} = \frac{12}{20}$ Simplest form: $\frac{3}{5}$

6. $\frac{5}{8} + \frac{1}{8} = \frac{6}{8}$ Simplest form: $\frac{3}{4}$

<h3><em><u>Explanation:</u></em></h3>

Simply add the numerators of the like fractions together. The denominators remain the same.

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3 years ago

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Answer:

(x+1)(x+8) When factoring squares whose squared coefficient is one the roots must add up to the coefficient of the slope and multiply out to the intercept value.

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