Answer:
d= the square root or 34 or 5.83095
Step-by-step explanation:
-3,y1=-7,x2=-8,y2=-4
The cost for each book will be if the person buy 7 books.
Further explanation:
The arithmetic sequence can be expressed as follows,
......
Here, represents the first term, represents the second term, and so on.
The common difference “d” can be obtained as follows,
The nth term can be obtained as follows,
Explanation:
The cost of a book is
The cost of a book is if the person buys 2 books.
The cost of a book is if the person buys 3 books.
The cost of a book is if the person buys 4 books.
The sequence is
The first term is the second term is
The common difference “d” can be obtained as follows,
The cost for each book if the person buys 7 books can be obtained as follows,
The cost for each book will be 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.
3. Learn more about range and domain of the function brainly.com/question/3412497
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.
The unitrate is $15.
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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The given ratios 9/15 and 6/10 are equivalent form is a proportion of 3/5.
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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