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kiruha [24]
3 years ago
8

Briefly describe proportional reasoning and what it means for something to be proportional

Mathematics
2 answers:
svp [43]3 years ago
8 0
Proportional reasoning is a form of mathematical reasoning that involves a sense of co-variation and of multiple comparisons, and the ability to mentally store and process several pieces of information.  I hope my answer has come to your help. God bless and have a nice day ahead!
trasher [3.6K]3 years ago
5 0

Answer:

Proportional Reasoning ​​​​​​is the ability to recognize when two rations are equivalent. Two ratios are said to be equivalent if the ratios have equal numerical values. That's the actual definition from the class itself and it gave me a 100% score. Hope this helps!

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How many phone numbers are possible for one area code if the first four numbers are 202-1 , in that order , and the last three n
Mkey [24]

6 phone numbers are possible for one area code if the first four numbers are 202-1

<u>Solution:</u>

Given that, the first four numbers are 202-1, in that order, and the last three numbers are 1-7-8 in any order  

We have to find how many phone numbers are possible for one area code.

The number of way “n” objects can be arranged is given as n!

Then, we have three places which changes, so we can change these 3 places in 3! ways

n! = n \times (n - 1)!

Hence 3! is found as follows:

3! = 3 \times (3-1)!\\\\3! = 3 \times 2!\\\\3! = 3 \times 2 \times 1 = 6

So, we have 6 phone numbers possible for one area code.

3 0
3 years ago
If (3a + 3b + 1) (3a + 3b - 1) = 80, then a + b =
seropon [69]

Answer:

a+b = 4\sqrt{3}

Step-by-step explanation:

3(a + b)^2 = 81

(a + b)^2 = 27

a + b = sq rt 27

a + b = \sqrt{9}· \sqrt{3}

a + b = 3\sqrt{3}

8 0
3 years ago
Nikki, Pablo, and Mia are running a race. How many different ways might they finish the race?
AleksAgata [21]
They can finish in 18 different ways
4 0
3 years ago
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I reallllyy neeeeedd helpppp dont be capping put the right answer
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I believe it's A, C and D.

7 0
3 years ago
Evaluate the function below for f(3)<br> f (x) = 3x2 - 5<br> what’s the answer
Novay_Z [31]
The answer is 13 because you would plug in 3(3) which is 9 then you multiply (9)(2) which is 18 they you subtract 18-5 which equals 13
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