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Add the digits together. The sum of the digits of 23 is 5.

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โˆ™ 2017-09-28 04:01:40
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Algebra

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A polynomial of degree zero is a constant term

The grouping method of factoring can still be used when only some of the terms share a common factor A True B False

The sum or difference of p and q is the of the x-term in the trinomial

A number a power of a variable or a product of the two is a monomial while a polynomial is the of monomials

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How do you find the sum of digits of each number?

Add the digits together. The sum of the digits of 23 is 5.


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The no. is 35.


What rule must be used to find the number of strings of four decimal digits that do not contain the same digit twice?

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When numbering the pages of a book 624 digits were used find the number of pages in the book?

This problem can be solved by applying the counting principle to digits in consecutive page numbers. To begin, we need to separate numbers into their numbers of digits in order to multiply the page numbers to find the number of digits needed to express them. Assuming that your book begins on page 1, there are 9 page numbers having one digit only (counting principle: 9 - 1 + 1 = 9). Since each of these pages is numbered with one digit, the number of digits used is 9 so far. Continue with the pages each numbered with two digits. These are pages 10-99, comprising 90 pages (99 - 10 + 1 = 90). Every page number multiplied by 2 digits each is 180. With the 9 digits coming from single-digit pages, the number of digits used so far is now 189. We can continue in the same manner for pages expressed with three digits, 100-999, but having 435 (624 total - 189 so far = 435) digits left, we probably won't be able to get through all the three-digit numbers. Also, a book is likely to have under a thousand pages. To find out how many pages are left, we divide the number of digits left by the number of digits needed for each page: 435/3 = 145 pages left. Since 145 pages only account for the pages numbered with three digits each, we need to add pages numbered with one and two digits each in order to find the total number of pages. Before 145 pages began to be accounted for, we had accounted for the digits of 99 pages (each numbered using one or two digits each), so the total number of pages is 99 + 145 = 244.


A two digit number is five times the sum of the digits if 9 is added to the number the digits are reversed find the number?

45


How can you find the value of a digit in a number?

There are about 10-11 digits in a number


Find 5 four digit numbers such that the product of the digits of each four digit prime number are also prime?

You had me until "product." The product of 4 digits can't be prime.


If the number of two digits are reversed it becomes 36 greater than the number find the number if the sum of the digits is equal to 8?

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