a bookcase has 4 shelves the bottom shelf has 10 books each of the other shelves has 5 more books than the shelf below it how many books are in the bookcase

Answers

Answer 1

Answer: all you do is add. the answer is 55. you add 15 + 15 + 15 + 10 = 55

(Hope this helps)

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How do you write 10x 10 x 10 x10 using exponents SHOW YOUR WORK WILE ANSWERING THIS QUESTION

Answers

The way you write 10x10x10x10 using exponents. The way you use exponents is by counting the numbers of 10 there are since there is four you have to put 10 with a little number four on the top next to the number. Just in case that way you say it is 10 to the fourth power

You would write 10 with the number 4 on top. you do this because you have 4 tens.

-25 - 17(9 + 8) I keep getting different answers..

Answers

We must use the order of operations as expressed by the saying:

Please Excuse My Dear Aunt Sally

P = Parentheses
E = Exponent
M = Multiplication
D = Division
A = Addition
S = Subtraction

So, we start with the parentheses:

-25 -17(17)

Next, we complete the multiplication problem:

-25 -289

Now, we do the subtraction problem:

-314

Hope this helps!

Please help solve the ineaquality x over 3 is < than 3

Answers

We have an inequation:
x/3 < 3
⇒ x < 3*3
⇒ x < 9

The final answer is x < 9~

I need help with this question someone please help and explain. Find the sum of the first twenty-seven terms of an arithmetic series whose first term is -8 and the sum of the first seven-term is 28.