Ask your own question, for FREE!
Mathematics 23 Online
OpenStudy (anonymous):

Need help. flvs. math. medal + fan

OpenStudy (uh60blackhawk):

give us the question

OpenStudy (anonymous):

Which expression describes the rule of this sequence? Three, six, nine, twelve, fifteen, eighteen, and so on. three plus the quantity n minus one three times n three plus the quantity three times n three plus n

OpenStudy (uh60blackhawk):

3,6,9,12,15,18 so what do you think

OpenStudy (anonymous):

Times 3x ?

OpenStudy (uh60blackhawk):

its going up by what

OpenStudy (uh60blackhawk):

well if 3*3= 9 that will be incorrect

OpenStudy (anonymous):

A?

OpenStudy (uh60blackhawk):

3+3=6-1=5 that will be incorrect too.

OpenStudy (anonymous):

Okay. I see it now B

OpenStudy (uh60blackhawk):

no that was your first pick

OpenStudy (anonymous):

D is the only answer left .

OpenStudy (uh60blackhawk):

yes that will be correct

OpenStudy (uh60blackhawk):

3+3= 6 6+3=9 9+3=12 and so on

OpenStudy (anonymous):

Aha, I see now.

OpenStudy (anonymous):

Okay, The next one, I think it is C

OpenStudy (anonymous):

Which expression describes the rule of this sequence? 7, 14, 21, 28, 35… 7 + n 7n 7n n+ 7 + 7

OpenStudy (uh60blackhawk):

what will you think

OpenStudy (anonymous):

C

OpenStudy (uh60blackhawk):

7n mean 7*n

OpenStudy (anonymous):

Yes, C right?

OpenStudy (uh60blackhawk):

no whats 7*7?

OpenStudy (anonymous):

49

OpenStudy (uh60blackhawk):

so is there 49 in your question?

OpenStudy (uh60blackhawk):

7, 14, 21, 28, 35 there is not 49 in here

OpenStudy (anonymous):

yass. it's not there.

OpenStudy (uh60blackhawk):

so that will be incorrect

OpenStudy (anonymous):

D looks correct to me.

OpenStudy (uh60blackhawk):

7+7+7=?

OpenStudy (anonymous):

21

OpenStudy (anonymous):

21 is in there!

OpenStudy (uh60blackhawk):

so is there a 21 after 7? 7, 14, 21, 28, 35

OpenStudy (anonymous):

Yass !

OpenStudy (uh60blackhawk):

no look again 21 is before 14

OpenStudy (uh60blackhawk):

you guessed all the answer except one

OpenStudy (anonymous):

It looks like it's D. A, B and C doesn't make any sense

OpenStudy (uh60blackhawk):

we have to find the expression that goes with 7, 14, 21, 28, 35 and the sequence have to be in order.

OpenStudy (anonymous):

It looks like it would be B

OpenStudy (uh60blackhawk):

again 7*7=49 there is no 49 in the sequence

OpenStudy (anonymous):

Then a

OpenStudy (uh60blackhawk):

yes it will be A you know what?

OpenStudy (uh60blackhawk):

*why

OpenStudy (anonymous):

cuz' its continuing on with x3

OpenStudy (uh60blackhawk):

no because 7+7= 14 and 14+7=21

OpenStudy (anonymous):

Simplify by combining like terms. eight b plus two c plus three minus four b plus five c four b plus seven c plus three twelve b plus seven c plus three four b minus three c plus three twelve b minus three c plus three

OpenStudy (uh60blackhawk):

sorry i don't know that one

OpenStudy (anonymous):

eh okay.

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!