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OleMash [197]
3 years ago
8

What is the solution for 2t<5

Mathematics
1 answer:
aliya0001 [1]3 years ago
7 0
T < 5/2
t is less than 5/2 or 2.5
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If someone could help me answer this and possibly give me a step-by-step for future reference that'd be great thanks.
andreyandreev [35.5K]

Answer:

Let's look at the Venn diagram and the data we have:

There are 12 pupils

9 have a brother

7 have a sister

2 have neither.

Now let's look at the diagram.

We know that the circle B represents the pupils who have a brother

Circle S represents the students that have a sister.

Then the intersection of the circles, represents the number of students that have both.

And the space outside the circles represents the pupils that do not have a brother nor a sister.

Then the first thing we can complete is a 2 in the bottom left corner, because we already know that there are 2 pupils that do not have brothers nor sisters.

Now let's find the number of students that have both, brothers and sisters:

There are 12 pupils.

9 have a brother

7 have a sister

2 have neither

if we add that, we get:

9 + 7 + 2 = 18

This is larger than 12, this means that we are counting some of the students more than once.

If X is the number of students that we are counting twice, we should have:

18 - X  = 12

18 -12 = X = 6

There are 6 students who we are counting twice, and this happens because these 6 students have a brother and a sister.

Then in the intersection of both circles we should put a 6.

At the left of that (in the part that we have only circle B) we need to write the number of students that only have a brother, this is the number of students that have a brother minus the number of pupils that have a brother and a sister, this is:

9 - 6 = 3

We need to write a 3 in that square.

And in the last square (the one that is only one circle S) we need to write the number of pupils that only have a sister, this is calculated in the same way than before, this is:

7 - 6 = 1

We need to write a 1 in the rightmost square.  

6 0
2 years ago
Help please i wasnt there when we learned this.
Alex17521 [72]
<h3><u>The first number, x, is equal to 33.</u></h3><h3><u>The second number, y, is equal to 23.</u></h3><h3><u>The third number, z, is equal to 46.</u></h3>

x + y + z = 102

z = 2y

x = 10 + y

Because we have values of x and z, we can plug them into the original equation to solve for y.

10 + y + y + 2y = 102

Combine like terms.

4y + 10 = 102

Subtract 10 from both sides.

4y = 92

Divide both sides by 4.

y = 23

Now that we have a value for y, we can find the value of x and z.

z = 2(23)

z = 46

x = 10 + 23

x = 33

8 0
2 years ago
A residential community was polling households to find out whether they wanted to get their TV signal from a satellite or cable.
ziro4ka [17]

Answer:

What are the results? What's the question?

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Find the prime factorization: 49 i am stuck
ollegr [7]

Answer:

49 can be broken down into 7 * 7 so the prime factorization is simply 7².

8 0
3 years ago
Read 2 more answers
Here are four number cards.
vfiekz [6]

Answer:

its number 6

Step-by-step explanation:

6 0
3 years ago
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