How to write 2000 using exponents

Answers

Answer 1

Answer: 2 and the on top of 2 you put 3 you put three because the 2 has 3 zeros

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What fraction does each month have of a year

Answers

Hello,

Okay there are 12 months so that is the denominator and each month counts as one so that is the numerator. So the fraction would be 1/12.

Hope I Helped ;)

Find the distance between these W(-3,-7) and x(-8,-4)

Answers

Answer:

d= the square root or 34 or 5.83095

Step-by-step explanation:

-3,y1=-7,x2=-8,y2=-4

A store has a sale on books. The price is $17.55 for one book, $16.70 each for 2 books, $15.85 each for 3 books, and $15 each for 4 books. If this pattern continues, how much per book will it cost to buy 7 books

Answers

The cost for each book will be $\boxed{\$ 12.45}$ if the person buy 7 books.

Further explanation:

The arithmetic sequence can be expressed as follows,

${a_1}, {a_2}, {a_3}$ ......

Here, $a{\text{ or }}{a_1}$ represents the first term, ${a_2}$ represents the second term, and so on.

The common difference “d” can be obtained as follows,

$\boxed{d = {a_2} - {a_1}}$

The nth term can be obtained as follows,

$\boxed{{a_n} = a + \left( {n - 1} \right)d}$

Explanation:

The cost of a book is $\$ 17.55.$

The cost of a book is $\$ 16.70$ if the person buys 2 books.

The cost of a book is $\$ 15.85$ if the person buys 3 books.

The cost of a book is $\$ 15.00$ if the person buys 4 books.

The sequence is $\$ 17.55, \$ 16.70, \$ 15.85, \$ 15.00.$

The first term is $\$ 17.55,$ the second term is $\$ 16.70.$

The common difference “d” can be obtained as follows,

$\begin{aligned}d&={a_2} - {a_1}\n&=16.70 - 17.55\n&=- 0.85\n\end{aligned}$

The cost for each book if the person buys 7 books can be obtained as follows,

$\begin{aligned}{a_6}&= 17.55 + \left( {7 - 1} \right)\left( { - 0.85} \right)\n&= 17.55 + 6\left({ - 0.85} \right)\n&= 17.55 - 5.1\n&=\$12.45\n\end{aligned}$

The cost for each book will be $\boxed{\$ 12.45}$ if the person buy 7 books.

Learn more:

1. Learn more about inverse of the functionbrainly.com/question/1632445.

2. Learn more about equation of circle brainly.com/question/1506955.

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Answer details:

Grade: Middle School

Subject: Mathematics

Chapter: Arithmetic Sequence

Keywords: Store, books, price, $17.55, 2 books, 3 books each cost $16.40, pattern continues, cost, 7 books.

1 book is 17.55
2 books is 16.70
3 books is 15.85
4 books is 15
5 books is 4.15
6 books is 4.30
7 books is (3.55)

Explain how you would decide which unit is best for measuring your math book?

Answers

Inches beacause feet would be too much and centimeters would be too small

ruler (inches) would be the best way to measure a math textbook

Estimate the unit rate to the nearest whole number. $74.75

Answers

The unitrate is $15.

What is a unit rate?

It is the quantity of an amount of something at a rate of one of another quantity.

In 2 hours, a man can walk for 6 miles

In 1 hour, a man will walk for 3 miles.

We have,

5 gal of paint = $74.75

The unitrate.

= 74.75 ÷ 5

= $14.95

= $15

Thus,

The unitrate is $15.

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$75.00 is the nearest whole number.

Determine whether the ratios 9/15 and 6/10 form a proportion.

Answers

The given ratios 9/15 and 6/10 are equivalent form is a proportion of 3/5.

What is Ratio?

The ratio is defined as a relationship between two quantities, it is expressed as one divided by the other.

To determine whether the ratios 9/15 and 6/10 form a proportion, we need to check whether the cross-products of these ratios are equal. The cross-product of two ratios is found by multiplying the numerator of the first ratio by the denominator of the second ratio, and vice versa.

In this case, the cross-product of the ratios 9/15 and 6/10 is (9 x 10) / (15 x 6) = 90/90 = 1. Since the cross-products of these ratios are equal, the ratios 9/15 and 6/10 form a proportion.

Alternatively, we can also check whether the two ratios are equivalent. To do this, we can simplify both ratios to their lowest terms.

The simplified form of the ratio 9/15 is 3/5, and the simplified form of the ratio 6/10 is 3/5. Since the simplified form of both ratios is the same, the ratios are equivalent and form a proportion.

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The ratio 9/15 and 6/15 form a proportion

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