Ask question

Ask question

All categories

3 years ago

7

How do you estimate decimals?

2 answers:

dexar [7]3 years ago

3 0

If you are rounding to the nearest tenth
Let's say round 20.15 to the nearest tenth. 1 is the tenth place. You have to look at the hundredths place. Since it is 5 and over You round up. If it is under 4 then you round down to it would be 20.2

Novay_Z [31]3 years ago

3 0

1. Find the place value you want (the "rounding digit") and look at the digit just to the right of it.
2. If that digit is less than 5, do not change the rounding digit but drop all digits to the right of it.
3. If that digit is greater than or equal to 5, add one to the rounding digit and drop all digits to the right of it.

Hope this helps!!!!!!

You might be interested in

In a cafeteria, 100 milk cartons were put out for breakfast. After breakfast there were 40 milk cartons left. What is the ratio

VMariaS [17]

the ratio would be 40:60

3 0

3 years ago

Read 2 more answers

Suppose $200 is invested at the annual interest rate 6% compounded continuously what is the amount in the account after years ?

Setler [38]

The amount in the account after years is 12

6 0

3 years ago

A hungry elf ate 14 of your muffins Thats was 7/10 of all of them! how many are left?

Dennis_Churaev [7]

6 muffins are left. Here's how you do it:
take 14 and divide it by 7 which equals 2.
Then multiply it by 3 which equals 6
hope this helps!

5 0

3 years ago

2(4x - 6) = 6x - 4 <br><br> A) 4 <br> B) 8 <br> C) -4 <br> D) no solution

Zanzabum

The answer should be A) 4

3 0

3 years ago

Read 2 more answers

Convert 5 square root of a into exponential form?

stich3 [128]

Answer:

The answer is: " $5a^\frac{1}{2}$ " .

_____________________________________________

Step-by-step explanation:

______________________________________________

We are asked to convert "5 square root of a" ; into "exponential form".

Note that "5 square root of a" ;

or; " 5 root a " ;

means: " 5 times the {square root of the variable, "a" };

or : " 5 multiplied by the {square root of the variable, "a" }.

_______________________________________________

This can be written as: " $5\sqrt{a}$ " .

_______________________________________________

<u>Note the following property of exponents</u>:

$\sqrt[n]{a^m} = (\sqrt[n]{a})^m = a^m^n$ .

_____________________________________________

So; to write: " √a " ; <u> </u><em><u>as an exponent</u></em><u> </u> :

______________________________________________

<u>Note</u>:

" $\sqrt{a} = \sqrt[2]{a} = \sqrt[2]{a^1} = (\sqrt[2]{a})^1 = a^\frac{1}{2}$ " .

_______________________________________________

<u>So</u>:

" $\sqrt{a} = a^\frac{1}{2}$ " ;

_______________________________________________

<u>And</u>:

________________________________________________

" $5\sqrt{a} = 5a^\frac{1}{2}$ " .

________________________________________________

→ The answer is: " $5a^\frac{1}{2}$ " .

________________________________________________

Hope this helps!

Best wishes in your academic endeavors

— and within the "Brainly" community!

________________________________________________

6 0

3 years ago