A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
Brad can make 4 key chains in an hour. Velma can make only 3 key chains in an hour, but she already has 6 completed key chains. Explain to Brad how he can use a system of equations to determine when he will have the same number of key chains as Velma. Please explain each step too?
anonymous
 one year ago
Brad can make 4 key chains in an hour. Velma can make only 3 key chains in an hour, but she already has 6 completed key chains. Explain to Brad how he can use a system of equations to determine when he will have the same number of key chains as Velma. Please explain each step too?

This Question is Closed

freckles
 one year ago
Best ResponseYou've already chosen the best response.1Let t represent the amount of hours.

freckles
 one year ago
Best ResponseYou've already chosen the best response.1Say molly can make 3 keys per hour than the number of keys per hour she can make is given by the expression 3t so can you make an expression for Brad?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so it's the number of key chains multiplied by the amount of hours?

freckles
 one year ago
Best ResponseYou've already chosen the best response.1no. M(t)=3t because Molly can make 3 keys per hour for example when t=1 hour then M=3 this means she has made 3 keys in 1 hour if t=2 then M=3+3=6 this mean she has made 6 keys in 2 hours because she can make 3 keys in 1 hour

freckles
 one year ago
Best ResponseYou've already chosen the best response.1Say Velma has already made 2 keys and can make 5 keys an hour. So her function would be V(t)=2+5t because at 0 hours V=2 which this means before she began she had 2 completed keys at t=1 she would have V=7 this means she has had 7 completed keys after 1 hour

freckles
 one year ago
Best ResponseYou've already chosen the best response.1You can find when they have the same number of keys by setting M(t)=V(t) by solving the following for t: 3t=2+5t

freckles
 one year ago
Best ResponseYou've already chosen the best response.1So try making an expression for Brad and Velma.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay, one second while i do that.

freckles
 one year ago
Best ResponseYou've already chosen the best response.1Oops didn't realize you had a velma someone said something about velma so i thought she wasn't being used

freckles
 one year ago
Best ResponseYou've already chosen the best response.1my velma is different from your velma

freckles
 one year ago
Best ResponseYou've already chosen the best response.1Brad can make 4 key chains in an hour. This means in 1 hour he can make 4. In 2 hours he can make 4+4=2(4)=8. In 3 hours he can make 4+4+4=3(4)=12. So in t hours he can make t*4 or 4t is how it is normally written. B(t)=4t. Do you see how I came up with that?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0do i have it right so far? Let (t) represent the amount of hours. Let (V) represent Velma and (B) for Brad. Since Velma is able to make 3 key chains per hour, vt = 3t. Brad will be able find when he will have the same number of key chains by setting B(t)=V(t) Solve for (t). 4t = 6 + 3t

freckles
 one year ago
Best ResponseYou've already chosen the best response.1B(t)=4t and V(t)=6+3t

freckles
 one year ago
Best ResponseYou've already chosen the best response.14t=3t+6 try subtract 3t on both sides

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Solve for (t). 4t = 6 + 3t Subtract 3t on both sides. 4t  3t = 6 + 3t  3t Dive 1t by both sides. 1t = 6 t=6

freckles
 one year ago
Best ResponseYou've already chosen the best response.1yeah! :) so in 6 hours they will have same amount of key chains made

freckles
 one year ago
Best ResponseYou've already chosen the best response.1np sorry for using you velma in my example
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.