jameshorton
  • jameshorton
Which pair of numbers have a GCF of 3? Choose all answers that are correct. A. 18 and 15 B. 3 and 9 C. 6 and 9 D. 15 and 20
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
GenericNoodles
  • GenericNoodles
Greatest common factor is the biggest multiple, so what do you think it is?
jameshorton
  • jameshorton
idk
mathstudent55
  • mathstudent55
Factors of 18: 1, 2, 3, 6, 9, 18 Factors of 15: 1, 2, 5, 15 The greatest factor both 18 and 15 have is 3. Now do the same for the other choices.

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More answers

mathstudent55
  • mathstudent55
The GCF is the greatest common FACTOR, not multiple.
jameshorton
  • jameshorton
d
jameshorton
  • jameshorton
A
GenericNoodles
  • GenericNoodles
Oops my bad, his explanation is correct :) make you follow those steps.
jameshorton
  • jameshorton
so the answer is d,a
jameshorton
  • jameshorton
wat the third one
jameshorton
  • jameshorton
wat is the answer
anonymous
  • anonymous
Look at B and C, follow the same steps as math explained o:
anonymous
  • anonymous
For B; List all of the factors of 15 and 18, and find the largest factor that they both have. For D; Can 15 and 20 both be divisible by 3?
jameshorton
  • jameshorton
soo wat the answer d,a
mathstudent55
  • mathstudent55
D is not an answer. The GCF of D is 5, not 3.
jameshorton
  • jameshorton
oh
mathstudent55
  • mathstudent55
A is part of the answer. Now check B. What are the factors of 3 and what are the factors of 9?
jameshorton
  • jameshorton
b,c
GenericNoodles
  • GenericNoodles
We can't give you the answers, just the tools to help you!
jameshorton
  • jameshorton
ok
mathstudent55
  • mathstudent55
B: Factors of 3: 1, 3 Factors of 9: 1, 3, 9 C: Factors of 6: 1, 2, 3, 6 Factors of 9: 1, 3, 9 Now look above for B and C. What is the largest factor in common for B and for C?
jameshorton
  • jameshorton
3,6,9,12,15,18
mathstudent55
  • mathstudent55
What is that?
jameshorton
  • jameshorton
9
mathstudent55
  • mathstudent55
\(\sf Choice ~ B:\) \(\sf Factors ~of ~3: 1, \color{red} 3\) \(\sf Factors ~of ~9: 1, \color{red} {3}, 9\)
GenericNoodles
  • GenericNoodles
When you find the greatest common factor for two numbers, you lost the numbers they have in common. For question C, The only factors of 6 is 1, 2, 3, 6 The only factors of 9 is 1, 3, 9 Now they each have two numbers in common. 1, and 3. Now decide which of the factors is larger. That is your greatest common factor.
jameshorton
  • jameshorton
3
GenericNoodles
  • GenericNoodles
Find not lost, open study is glitchy on iPhone
jameshorton
  • jameshorton
oh
mathstudent55
  • mathstudent55
Yes, you are correct. B and C are answers. Since we already had A, then the answer is A, B, C
GenericNoodles
  • GenericNoodles
It's a really easy unit of math once you get the hang of it.

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