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3 years ago

Please Help........................................................

Mathematics

1 answer:

larisa [96]3 years ago

8 0

$2(n-5)\geq2n+10\\2n-10\geq2n+10\\-10\geq 10\\n\in\emptyset$

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X % of $5 = $4<br><br> Please help

ASHA 777 [7]

Answer: 80%

Explanation 4/5=.8

4 0

3 years ago

A total of 1 232 students have taken a course in Spanish, 879 have taken a course in French, and 114 have taken a course in Russ

ElenaW [278]

Answer:

$n(S\cap F \cap R)=7$

Step-by-step explanation:

The Universal Set, n(U)=2092

$n(S)=1232\\n(F)=879\\n(R)=114$

$n(S\cap R)=23\\n(S\cap F)=103\\n(F\cap R)=14$

Let the number who take all three subjects, $n(S\cap F \cap R)=x$

Note that in the Venn Diagram, we have subtracted $n(S\cap F \cap R)=x$ from each of the intersection of two sets.

The next step is to determine the number of students who study only each of the courses.

$n(S\:only)=1232-[103-x+x+23-x]=1106+x\\n(F\: only)=879-[103-x+x+14-x]=762+x\\n(R\:only)=114-[23-x+x+14-x]=77+x$

These values are substituted in the second Venn diagram

Adding up all the values

2092=[1106+x]+[103-x]+x+[23-x]+[762+x]+[14-x]+[77+x]

2092=2085+x

x=2092-2085

x=7

The number of students who have taken courses in all three subjects, $n(S\cap F \cap R)=7$

3 0

3 years ago

What is 2% = in simplest form

just olya [345]

Answer:

1/50

Step-by-step explanation:

Hope this helped have a nice day!

4 0

2 years ago

Read 2 more answers

The length and width of a rectangle are 5 feet and 2 feet, respectively. A similar rectangle has a width of 8 feet. What is the

dsp73

The answer for this question will be 20 ft

8= 4x2 so 5x4=20ft

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3 years ago

Evaluate the expression:

ira [324]

H̲̅ᴇ̲̅ʏ̲̅!̲̅ Hope that I can help!
To do this, all you have to do is subtract 22 from 26. 26-22=4.

Answer: C.) 4
If you were helped by my answer, remember that I worked really hard on it. Please click the [ ♥ ᴛʜᴀɴᴋs ] button below and give me a rating of ★★★★★ to show your appreciation.

6 0

2 years ago