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Likurg_2 [28]
3 years ago
13

I need to solve for x plz help ​

Mathematics
1 answer:
galben [10]3 years ago
7 0

Answer:

x = 6

Step-by-step explanation:

Just a hunch

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16. In a group of 68 students, each student is registered for at least one of three classes – History, Math and English. Twenty-
sergey [27]

Answer:

Step-by-step explanation:

Total number of students = 68

Let history = H

Maths = M

English = E

n(H) = 25

n(M) = 25

n(E) = 34

n(HnMnE) = 3

Total = n(H) + n(M) + n(E) - people in exactly two groups + 2(people in exactly 3 groups) + people in none of the groups

68 = 25 + 25 + 34 - people in exactly two groups - 6 +0

68 = 84 -6 - people in exactly two groups

68 = 78 - people in exactly two groups

People in exactly two groups = 78 - 68

= 10

OR

From the venn diagram, people in exactly two groups are represented by x, y and z

Total = 25 - x - y - 3 + 25 - x - z - 3 + 34 - y - z - 3 + x + y + z + 3

68 = 50 - x - 3 + 34 - y - z - 3

68 = 84 - 6 - x - y - z

68 = 78 - x - y - z

68 - 78 = - x - y - z

-10 = -(x + y + z)

x+y+z = -10/-1

x+y+z = 10

The number of students that registered for exactly two courses = 10

4 0
3 years ago
Read 2 more answers
The length of a rectangle is 6m longer than its width. The perimeter of the rectangle is at least 120m . What is the least possi
bogdanovich [222]
I hope this helps you

6 0
4 years ago
15 points What’s the area‼️‼️‼️‼️‼️ please help me attach work too if you can
Fittoniya [83]

Answer:

66

Step-by-step explanation:

5x2= 10

7x8= 56

10+56= 66

7 0
3 years ago
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To<br> E<br> F<br> A. Triangle A<br> B. Triangle B<br> C. Triangle C<br> D. Triangle D
iogann1982 [59]

Answer:

B,D,and F

Step-by-step explanation:

I hope this helps you

4 0
3 years ago
A car drives at an average speed of 54km/h for 1 hour and 20 minutes. What was the distance covered by the car in km?​
VLD [36.1K]

Answer:

\huge\boxed{\sf S = 71.82\ km}

Step-by-step explanation:

<u>Given:</u>

Speed = v = 54 km/h

Time = 1 hour 20 min = 1 hour (20/60) hour = 1.33 hrs

<u>Required:</u>

Distance = S = ?

<u>Formula:</u>

S = vt

<u>Solution:</u>

S = (54)(1.33)

S = 71.82 km

\rule[225]{225}{2}

Hope this helped!

<h3>~AH1807</h3>
8 0
3 years ago
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