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3 years ago

11

The temperature in New York City one morning was 22 degrees Celsius. The wind chill temperature that same morning was -3celcius.

What is the difference in actual temperature and wind chill temperature?

1 answer:

egoroff_w [7]3 years ago

8 0

Answer:

25

Step-by-step explanation:

How many units are between 22 and -3? 25. A good way to be able to tell is simply subtract -3 from 22, like so:

22 - (-3) = 25

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A class survey found that 29 students watched television on Monday, 24 on Tuesday, and 25 on Wednesday. Of those who watched TV

gizmo_the_mogwai [7]

Answer:

There were 49 students in the class

Step-by-step explanation:

To solve this problem, we must build the Venn's Diagram of this set.

I am going to say that:

-The set A represents the students that watched TV on Monday

-The set B represents the student that watched TV on Tuesday.

-The set C represents the students that watched TV on Wednesday.

We have that:

$A = a + (A \cap B) + (A \cap C) + (A \cap B \cap C)$

In which a is the number of students that only watched TV on Monday, $A \cap B$ is the number of adults that watched TV both on Monday and Tuesday, $A \cap C$ is the number of students that watched TV both on Monday and Wednesday, and $A \cap B \cap C$ is the number of students that watched TV on every day.

By the same logic, we have:

$B = b + (B \cap C) + (A \cap B) + (A \cap B \cap C)$

$C = c + (A \cap C) + (B \cap C) + (A \cap B \cap C)$

This diagram has the following subsets:

$a,b,c,(A \cap B), (A \cap C), (B \cap C), (A \cap B \cap C)$

The sums of all of this values is the number of student that were there in the class. This means that we want to find the value of T:

$a + b + c + (A \cap B) + (A \cap C) + (B \cap C) + (A \cap B \cap C) = T$

We start finding the values from the intersection of three sets.

Solution:

12 students watched TV on all three days:

$A \cap B \cap C = 12$

14 students watched TV on both Monday and Tuesday

$A \cap B + A \cap B \cap C = 14$

$A \cap B = 14 - 12$

$A \cap B = 2$

Of those who watched TV on only one of these days, 13 choose Monday, 9 chose Tuesday, and 10 chose Wednesday.

$a = 13, b = 9, c = 10$

29 students watched television on Monday:

$A = 29$

$A = a + (A \cap B) + (A \cap C) + (A \cap B \cap C)$

$29 = 13 + 2 + (A \cap C) + 12$

$A \cap C = 29 - 27$

$A \cap C = 2$

24 on Tuesday

$B = 24$

$B = b + (B \cap C) + (A \cap B) + (A \cap B \cap C)$

$24 = 9 + (B \cap C) + 2 + 12$

$B \cap C = 24 - 23$

$B \cap C = 1$

Now we have every value needed to find T:

$T = a + b + c + (A \cap B) + (A \cap C) + (B \cap C) + (A \cap B \cap C)$

$T = 13 + 9 + 10 + 2 + 2 + 1 + 12$

$T = 49$

There were 49 students in the class

7 0

4 years ago

What type of triangles did you have to construct to start the proof?

Mazyrski [523]

Answer:

You can draw a general triangle to start a proof unless you are given any specific qualities the triangle must have the triangle doesn't have to be draw to scale.

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Solve:x+1 3/4=2 4/8

Shalnov [3]

Start by isolating the X.

1 :
x + 1 ¾ = 2 4/8
- 1 ¾ - 1 ¾

2 :
x = (2 4/8) - (1 ¾)

3 :
In order to subtract the fractions, you need to find a common denominator.
The common denominator can be found by multiplying the two denominators together.

4 x 8 = 32

4 :
Rewrite each fraction as an equivalent fraction with a denominator of 32.

4/8 —> (4 x 4)/(8 x 4) —> 16/32
¾ —> (3 x 8)/(4 x 8) —> 24/32

5 :
Subtract the numerators. Simplify the answer if needed.
16/32 - 24/32
16 - 24 = -8
-8/32 —> (-8/4)/(32/4) —> -2/4
-2/4 —> (-2/2)/(4/2) —> - ½

6 :
(2 - 1) - ½ —> 1 - ½ = ½

Final answer : X = ½ :)

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3 years ago

What the answer to #2 will give brainliest

Darina [25.2K]

The domain is the whole set of x values, so the domain would go from -infinity to positive infinity. The vertex would be (-5,0) because that is the lowest point on the graph. The Range would include -5 and go up to infinity.

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3 years ago

Whats 30-30? please help me need the answer RN!!

xxTIMURxx [149]

Answer:

0

Step-by-step explanation:

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4 years ago

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