All categories

2 years ago

PLS HELP!!!!!!!!!!!!

Mathematics

2 answers:

seropon [69]2 years ago

8 0

Answer:

72 55/76

Step-by-step explanation:

it's right trust me <3

Brums [2.3K]2 years ago

8 0

Answer:

Step-by-step explanation:

First add the one with the same denominator.

15 $\frac{9}{12}$ + 23 $\frac{3}{12}$ = 38 $\frac{12}{12}$ = 39

8 $\frac{13\\}{17}$ + 25 $\frac{4}{17}$ = 33 $\frac{17}{17}$ = 34

Then add the answers of those equations.

39 + 34 = 73

You might be interested in

In a small chess tournament, 20 matches were played. Find out how many people were involved if it is known that each participant

Nina [5.8K]

Answer:

<em>5</em><em> players participated in the tournament.</em>

Step-by-step explanation:

In a small chess tournament, 20 matches were played.

Let us assume that n number of players participated in the tournament

As in each game 2 players play, so the number of ways they can play is,

$=\ ^nC_2$

As they played 2 games with every other participant in the tournament.

So the total number of games is,

$=\ 2\times ^nC_2$

But it is given to be 20, so

$\Rightarrow \ 2\times ^nC_2=20$

$\Rightarrow \ ^nC_2=10$

$\Rightarrow \dfrac{n!}{2!(n-2)!}=10$

$\Rightarrow \dfrac{n(n-1)}{2}=10$

$\Rightarrow {n(n-1)=20$

As $5\times 4=20$ , so we get n=5.

Therefore, 5 players participated in the tournament.

5 0

3 years ago

Read 2 more answers

Help me out please with domain and range and the last question please (algebra 2) no links please I will report

baherus [9]

Answer:

domain = ( -infinity, infinity) = all real numbers

range = ( -1, infinity)

3 0

3 years ago

Which regular polygon will have the largest angle measure?

Bad White [126]

I did this in my math the other day and the answer is octagon
i think of it as this 'the more angles there are the larger the angles'
i hope i helped

7 0

3 years ago

Read 2 more answers

A bag contains yellow marbles and blue marbles, 42 in total. The number of yellow marbles is 2 less than 3 times the number of b

Juliette [100K]

There are 31 yellow marbles. Work is attached.

4 0

3 years ago

Read 2 more answers

Write these expressions as simply as possible

harkovskaia [24]

So it is asking you to group like term so
x terms can be grouped/added/subtracted to other x terms, but not to x^2 or x^3 terms
x^2 terms to x^2 and so on so

1. 9-3k+5k=
9+(5k-3k)=
9+2k

2. k^2+2k+4k=
k^2+(2k+4k)=
k^2+6k=

7 0

3 years ago

Read 2 more answers