Question

-> ......Need Help......<-

Question 1 (Worth 1 points)

(02.01) A social networking site recorded that 80% of the people who became members of the site one month were between 30 and 40 years old. The equation below represents this information, where x represents the total number of people who became members of the site that month. x = 0.8x + 72 How many people who became members of the site that month were between 30 and 40 years of age?

112

288

360

432

Answer 1

360 is the answer.

Answer 2

Hi! @Adelyn220
Thank you for answering my question!
Can you show me how you got the answer so I can understand? :)

Answer 3

No problem! Okay so we know that 80% of people that signed up are between 30-40. In the equation it says to add 72, which would be the other 20%. Now what I did what divide 72 by 2, which is 36. That is 10%. Then you multiply that number by ten, to get the full 100% of people who signed up.

Answer 4

Wow! Thank you! @Adelyn220
Now I understand how you solved this!
Once again thank you so much! :)

Answer 5

Your welcome :) I usually try to break it up into 10%, it helps me personally. Glad I could help you too, and thank you for the medal!

Answer 6

You are Welcome! You deserved it!
And...Welcome to open study! :)

Answer 7

Thank you haha :D

Answer 8

Are you able to help me with some more questions? :)

Answer 9

If you want to that is... :)

Answer 10

Yeah, I'll see if I can help!

Answer 11

Thank you so much! You are too sweet! lol

Answer 12

Question 2 (Worth 1 points)

(02.01)

Solve for x: 3(x + 1) = -2(x - 1) - 4.

1

-1

-5

-25

Answer 13

I've already tried solving this but I got the wrong answer which is -1

Answer 14

sorry 1

Answer 15

Okay. Yeah all the negative signs are a bit overwhelming, I'll try it

Answer 16

Thank you!

Answer 17

It's either -1 or -25, I can't figure out which one. Sorry

Answer 18

it's okay! I'll try and figure it out :) Thank you!

Answer 19

No problem :)

Answer 20

are you good with fractions?