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kondor19780726 [428]
3 years ago
14

Need help with this I don't understand it​

Mathematics
2 answers:
Bumek [7]3 years ago
7 0

Answer:

2 1/4

Step-by-step explanation:

6/4+3/4= 9/4= 2 1/4

Ne4ueva [31]3 years ago
6 0

Answer:

The correct answer would be 2 1/4.

Step-by-step explanation:

6/4+3/4= 2.25

2.25 is equal to 2 1/4

Brainliest?

Hail Hydra!

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Which number line is it?
Allushta [10]
Answer is A. first one...

P = -3
G = 3

P = -G = -(3) = -3
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3 years ago
The perimeter of a square is equal to four times the length of a side. Write the direct v variation equation that represents the
sveticcg [70]

Answer: y=4x

Step-by-step explanation:

A direct variation equation has the form:

y=kx

Where <em>k</em> is a constant.

By definition, we know that the perimeter of the square is the sum of the lengths of its sides or, as all the sides are equal, you can multiply the lenght of any side by 4.

 Then, knowing that <em>y</em> is the dependent value and <em>x</em> the independent value and the constant <em>k=4, </em> you can write the following direct variation equation that represents the situation.

y=4x

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3 years ago
Find the equivalent expression
konstantin123 [22]
The answer is 6(2a+b)
7 0
3 years ago
Alex is a writer who writes poems and short stories. For an upcoming writer's workshop Alex wants to write some new works. He ne
pashok25 [27]

Answer:

The maximum number of works that he can write while staying in his time budget is 24.

21 poems and 3 short stories

Step-by-step explanation:

In order to solve this problem we must first determine what our variables are. In this case it's the number of poems and short stories he can write.

p = # of poems

s = # of short stories

Next, we must build our objective function which will represent the total number of works he can write.

N=p+s

where N is the number of works.

Next, we must write the constrains based on the information provided by the problem.

The problem tells us that it takes him 30 hours to write a poem and 70 hours to write a short story and that he has 840 hours available to write them, so that constrain will be the following:

30p+70s \leq 840

it also tells us that he wants to write at least 4 poems and 3 short stories so there we have our other two constrains.

p \geq 4

s \geq 3

once we got our constrains we can go ahead and graph them to see how they will behave. (See attached picture)

In the graph p is the horizontal axis and s is the vertical axis.

On the graph we can see a polygon that is formed by the restriction. The vertices of the polygon will represent the optimal conditions for this linear programming problem. There are three optimal solutions there, so we need to test them to see which will return the greatest number of works he can write while keeping the given conditions.

Option 1:

4 poems and 3 short stories

N=4+3

N= 7 works

Option 2:

4  poems and 10 short stories

N=4+10

N=14 works

Option 3:

21 poems and 3 short stories

N=21+3

N=24 works

So the optimal solution will be given by option 3 with 21 poems and 3 short stories.

5 0
2 years ago
if you are dealt 3 cards from a standard deck of cards what is the probability of not getting an ace?​
SSSSS [86.1K]

Answer:

2.6% chance

Step-by-step explanation:

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