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MissTica
3 years ago
5

Why is the greatest common factor of 2 numbers sometimes 1

Mathematics
2 answers:
faltersainse [42]3 years ago
8 0
The greatest common factor of two numbers, one of which is 1, will always be 1.
lions [1.4K]3 years ago
3 0
If the numbers are prime then the only factors are the numbers and 1.
For example - the factors of 5 are 1 and 5 and the factors of 7 are 1 and 7 so they only share the number 1.  That is the GCF of 5 and 7.
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SOLVE THE EQUATION SHOW YOUR WORK 3x = 45
Hunter-Best [27]

Answer:

x = 15

Step-by-step explanation:

3x = 45

x = 45/3

<em><u>x = 15</u></em>

4 0
3 years ago
Read 2 more answers
If a person walked 2.4 miles in 1.5 hours how far can he walk in 3 hours
Brrunno [24]

1.5 x 2 = 3 So you do 2.4 x 2 = 4.8 and the answer is 4.8 miles

6 0
3 years ago
The photography club decided to go on a field trip to the Andy Warhol museum. They had to break into smaller groups once they go
Diano4ka-milaya [45]
A)
Let x represent the cost of 1 student, and y the cost of 1 teacher.

B)
In the first group, there's 25 students and 2 teachers. Their total cost is $97.50
So 25x + 2y = 97.50
In the second group, there's 32 students and 3 teachers. Their total cost is $127
So 32x + 3y = 127

We get the following system of equations:
25x + 2y = 97.50 (1)
32x + 3y = 127 (2)

C)
25x + 2y = 97.50 (1)
32x + 3y = 127 (2)

In equation (1)
25x + 2y = 97.50
25x + 2y - 2y = 97.50 - 2y
25x = 97.50 - 2y
25x / 25 = 97.50/25 - 2y/25
x = 3.9 - (2/25)y

In equation (2), let's replace x by its algebraic value
32x + 3y = 127
32(-2/25y + 3.9) + 3y = 127
11/25y + 124.8 = 127
11/25y + 124.8 - 124.8 = 127 - 124.8
11/25y = 2.2
(11/25y) / (11/25) = 2.2 / (11/25)
y = 5

x = -2/25y + 3.9
x = -2/25 * 5 + 3.9
x = 3.5

So the cost of each student is $3.5, and the cost of each teacher is $5.

Hope this helps! :)




4 0
3 years ago
What percentage is 15 out of 17?
Ket [755]
88.23%

Simply plug 15/17 into you calculator 

and it will give you a decimal, in this case it should be .88235294...

simply move the decimal back to placements and you should have

88.235294... thats still a lot of numbers so just reduce it to 2 places after the decimal and add a percent sign

88.23%

and your done :) this works for any similar problems

I hope this helps

8 0
3 years ago
Read 2 more answers
Which graph can be used to find the solution(s) to x^2-1=3?
olga2289 [7]

First of all, you need to attach images for this one. Second of all, graph it in desmos and compare. Thirdly, whichever looks like this.


6 0
3 years ago
Read 2 more answers
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