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Aleks04 [339]
3 years ago
12

I wanna know: [3,5]={3,4,5}? Why?

Mathematics
1 answer:
Agata [3.3K]3 years ago
6 0

Answer:

Yes if [3,5] is a set of integers then it contains elements 3,4,5

As Closed bracket denotes that extreme points are also included and 4 is mid element in between 3 and 5

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What is the simplified from of the expression? r^-7 + s^-12
pochemuha

Answer:

2

Step-by-step explanation:

3 0
3 years ago
Mr. Ramirez purchased 20 concert tickets for a total of $225. The concert tickets costs $15 for adults and $10 for children unde
raketka [301]

Answer:

C = 15

Step-by-step explanation:

Let A = # of adults and C = # of children.

 

A +  C = 20

15A + 10C = 225

 

There are several ways to solve this system; here is one of them.

 

From the first equation: C = 20 - A

Substitute into the second equation: 15A + 10(20 - A) = 225

Multiply, collect terms, and subtract 200 from each side: 5A = 25 => A = 5

Since C = 20 - A, C = 15

4 0
3 years ago
Tyrone 400 yards in 1 minute and 20 seconds Alejandro run 150 yards in 25 seconds who ran faster and by how much​
yawa3891 [41]

Answer:

Tyrone

Step-by-step explanation:

Tyrone=\frac{400 yards}{1 minute} \\\\Alejandro=\frac{150 yards}{25 seconds}\\\\60 seconds = 1 minute\\\\\frac{60}{25} =2.4\\\\

Alejandro=\frac{150 *2.4}{25 *2.4}\\\\Alejandro=\frac{360 yards}{1 minute}\\\\\\400>360

3 0
3 years ago
PLEASE HELP! <br><br> Which interval indicates the answers most students gave?
xenn [34]
30-39 is the interval because it has the most responses
7 0
3 years ago
There are 15 hats on a rack and 9 of them are orange<br>What percentage of the hats are NOT orange?​
dmitriy555 [2]

Answer:

40%

Step-by-step explanation:

15-9=6

6/15=2/5=40/100=40%

4 0
3 years ago
Read 2 more answers
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