MATHEMATICS MIDDLE SCHOOL

How do you change a fraction to a decimal?

Answers

Answer 1
Answer: To change a fraction into a decimal,  divide the numerator by denominator.  This gets you a decimal.  Example.
4/25 Oh OK!  4 divided by 25 equals.... 0.16!  GG

:)-Kibeye
Answer 2
Answer: To convert a Fraction to a Decimal manually,
follow these steps:Step 1: Find a number you can multiply by the bottom of the fraction to make it 10, or 100, or 1000, or any 1 followed by 0s.Step 2: Multiply both top and bottom by that number.Step 3. Then write down just the top number, putting the decimal point in the correct spot (one space from the right hand side for every zero in the bottom number)

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1. There are 6 girls and 7 boys in a class. A team of 10 players is to be selected from the class. How many different combinations of players are possible?2. There are 6 girls and 7 boys in a class. A team of 10 players is to be selected from the class. If the selection is random, what is the probability of selecting a team of 5 girls and 5 boys? what is the decimal?

Answers

Answer:  1.  286 different combinations of players are possible.

2.  The probability of selecting a team of 5 girls and 5 boys is (63)/(143) and the decimal is 0.4405...

Step-by-step explanation:

1.  Number of girls is 6 and number of boys is 7.

So, the total number of players = 6+7 = 13

A team of 10 players is to be selected from the class.

So, the total possible number of different combinations of players will be:  ^1^3C_(10) = (13!)/(10! (13-10)!)=(13*12*11*10!)/(10!*3!)= (13*12*11)/(6)=286


2.   Number of girls is 6 and number of boys is 7.

The possible number of teams by selecting 5 girls and 5 boys will be:  ^6C_(5)* ^7C_(5) =6* 21= 126

and the number of total possible teams of 10 players = ^1^3C_(10) =286

Thus, the probability of selecting a team of 5 girls and 5 boys =(126)/(286)= (63)/(143) or 0.4405...

Kofi estimated that he would run a total of 10 km in 1 h. In 1 h, he actually ran 46 times around a track 0.25 km long, going a total distance of 11.5 km.What was the percent error in Kofi’s estimate? Round to the nearest tenth of a percent, if necessary.


A.
1.5%

B.
5%

C.
13%

D.
23%

Answers

The equation to find percent error is

(actual-theoretical)/(theoretical)*100

where actual is the value that actually came out (in this case, 11.5 km) and theoretical is the value that was supposed to come out (in this case, 10 km).  Just plug in the numbers and simplify.

(actual-theoretical)/(theoretical)*100\n\n(11.5-10)/(10)*100=(1.5)/(10)*100=15\%\ error

So, the true answer would be 15%.  Apparently, the question you're asking takes 11.5 as the theoretical and the 10 as the actual (which I personally disagree with)

If you plugged in the numbers that way, the answer comes out to 13.04%.  So, the correct answer for your answer choices is c. 13%

What is 109 percent as a decimal?

Answers

1.09

Hope I Helped You!!! :-)

Have A Good Day!!!

Answer:

1.09

Step-by-step explanation:

"Percent" means "per 100" or "over 100". To convert 109% to a decimal rewrite 109 percent in terms of per 100 or over 100.

109% = 109 over 100 or,

109%=109100109 over 100 is the same as 109 divided by 100. Completing the division we get:

109 ÷ 100 = 1.09

Therefore, we have shown that

109% = 1.09

Simplified Conversion:Remove the percent sign % and divide by 100.

109 ÷ 100 = 1.09

Shortcut Conversion:Move the decimal point 2 places to the left and remove the percent sign %

109% becomes 1.09

a club had some money to purchase new chairs after buying 355chairs at 199$ there was 1068$ remaining how much money did the club had first

Answers

The amount of money the club had first is $71,713

  • The chair purchased by the club is = 355 chairs
  • The total price per chair = 119
  • The money the club has after purchase = 1068

Further Explanation

To determine how much money the club has first, we can derive solution to it by using the area model method. (Please refer to the attachment below)

What we should do first is to calculate the total amount of money spend on chairs by multiplying the chair purchased and the price per each chair

Therefore, we have:

355 x 199

= (300 + 50 + 5) x (100 + 90 + 9)

= (300 x 100) + (300 x 90) + (300 x 9) + (50 x 100) + (50 x 90) + (50 + 9) (5 x 100) + (5 x 90) + (5 x 9)

= 30000 + 27000 + 2700 + 5000 + 4500 + 450 + 500 + 450 + 45

= 70645

Therefore, the total money spend on chairs is 70,645

Recall, we have to calculate the money the club has first before purchase, then we can derive this by adding the total money spend on chairs and the money the club has after purchase.

Therefore we have:

= 70645 + 1068

= 71,713

Therefore, the money the club has at first before purchasing new chairs is 71,713.

You can also solve this question quickly by following this step:

You can also solve this quickly by multiplying the chair purchased by the club and the price per each chair, then the value derived should be added to the money the club has after purchase.

Hence,

= 355 x 199

= 70645

= 70645 + 1068

= 71,713.

LEARN MORE:

KEYWORDS:

  • 355 chairs
  • club
  • $199
  • area model
  • multiplying
  • adding
Multiply 199 by 355 to give you 70,645. Then add 70,645 to 1068 to give you 71,713.

Write this number in expanded form 4,408,730

Answers

Expanded form means writing out a number in words. So, in expanded form, 4,408,730 will be:

four million, four hundred eight thousand, seven hundred thirty

It helps to figure this out if you say the number out loud, and then simply write down what you said. 

HOW MANY TENTHS ARE IN 13.58

Answers

5 tenths, because look at this:

13.58. Tenths is after the decimal. Hope this helps!

There are 135.8 of them.
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