MATHEMATICS MIDDLE SCHOOL

What is n times 7 what does it equals

Answers

Answer 1
Answer:

Answer:

It gives 7n

Step-by-step explanation:

When a number is multiplied by a number it an actual number

But in this case 7 is to be multiplied by n

Which means

7×n=7n
Answer 2
Answer:

Answer:

It gives 7n

Step-by-step explanation:

When a number is multiplied by a number it an actual number

But in this case 7 is to be multiplied by n

Which means

7×n=7n

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Write words to match the expression 3+ (4 times 12)

Answers

Three added to the product of four and twelve

In a chess match, a win counts as 1 point, a draw counts as 0.5 point, and a loss counts as 0 points. After 21 games between the two players, the winner was 8 points ahead of the loser. How many points did the winner have?PLS HELP

Answers

Answer:

14.5

Step-by-step explanation:

First, let's confirm that total points = total number of games played.

Suppose, if any one of the player wins all the games, then,

total points = 21(1) + 0 = 21 = total number of games

Suppose, all the games end in draw. Then,

21(0.5) + 21(0.5) = 21(0.5 + 0.5) = 21(1) = 21 = total number of games

Suppose, if one player wins in 10 games and the remaining 11 games end in draw, then,

10(1) + 11(0.5 + 0.5) = 10 + 11 = 21 = total number of games

So, in all cases, total points = total number of games played

Now, let x be the points that the loser has.

So, the winner's points should be x + 8.

Total number of games played = 21

Since, total points = total number of games played,

x + (x + 8) = 21

2x + 8 = 21

2x = 21 - 8 = 13

x = 6.5

Winner's points = x + 8 = 6.5 + 8 = 14.5.

Find the whole.
25% of what number is 65?

Answers

Answer:

260

Step-by-step explanation:

65 times four is the answer

Answer:

the answer is 260

Step-by-step explanation:

y x 25%=65

What is an equivalent fraction for 1/3

Answers

2/6, 3/9, etc..... I also suggest multiplying the top and bottom number by a common factor. 
It is 67/36 bc if u do that by the main number it's 67/36

A hotel has 56 guests. 35 of the guests are male. Work out 35 out of 56 as a percentage.

Answers

35 out of 56 looks like a fraction and fractions are division so you divide 56 by 35 to get a decimal.

(35)/(56) =0.625

Now, to turn the decimal into a percentage, multiply by 100.

0.625(100)=62.5

62.5% of the guests are male.
To solve this, you want to make a proportion: 35/56 x x/100.
1.) First you multiply 35 and 100= 3500
2.) Second divide 3500 by 56= 62.5
3.) Third, add the percent sign making the final answer 62.5%

5-2x=-4x-7 ???????????????????????

Answers


My goodness !  What are you going to do when you
really need a question mark and you don't have any
because you used them all up ?

You said                                5 - 2x  =  -4x - 7

Add  4x  to each side:           5 + 2x  =        -7

Subtract  5  from each side:       2x  =       -12

Divide each side by  2 :               x  =         -6
 
+2x on both sides
5=-2x-7
+7
12=-2x
/-2
-6=x
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