Question

Jason baby-sits weekends for $3.50 an hour.. He is saving money for a new stereo. he needs a total of $200.00 to purchase the stereo. So far , He has $60.00. Write and solve an equation to find the number of additional hours(h) Jason needs to baby sit to buy the stereo..

Answer 1

Alright, to start, we can use an inequality to solve this. So, how much money do you need at minimum?

Answer 2

in the question it says he needs 200 dollars

Answer 3

Correct, so you could say that the amount of money you have and need to get must be greater than or equal $200. So now our inequality begins to piece together: (Amount of money you have + the amount you need)is greater than or equal to $200. Understand so far?

Answer 4

yes I think so

Answer 5

Alright, so now we must put the other half of the inequality together. To start doing so, tell me: how much do you have presently?

Answer 6

so it would be that he needs 140 more

Answer 7

Well, yes, but tell me how much Jason has at present. The fact that he needs 150 more will be used in the next step.

Answer 8

*140

Answer 9

at present he has 60 .. maybe I am misunderstanding im sorry

Answer 10

It's fine. Anyway, now we can add one more part to the equality: "(what you still need)+\[60\ge200\]" Any questions so far?

Answer 11

60\[\ge \] 200 + 140 .. I have a lot of trouble in this my teacher I asked her to help and she says to work it out myself

Answer 12

im in the 6th grade

Answer 13

That's an...interesting..."teaching" method. Why'd you add 140 to the 200?

Answer 14

the equation is suppose to be together it separated it

Answer 15

wasn't tryin to add it together

Answer 16

then why'd you state \[60\ge200+140\] ?

Answer 17

not sure thought I was suppose to add what he needed to how much he had

Answer 18

i thought i was suppose to

Answer 19

No, follow my instructions. Just answer my previous question: do you understand how I got "(what you need) + 60 is greater than or equal to 200"?

Answer 20

yes i think we have done problems similar to that

Answer 21

Alright, then we'll go to the next and final step: adding in what Jason still needs to earn to meet and/or exceed his goal. Take a look at the only piece of info that we've ignored until now: his rate of pay per hour. Any ideas on how that could be used here?

Answer 22

my mom i think just figured it out... just need to know if the answer is right... my mom worked it out like this 200-60=140 then 140/3.5 = 40 ?

Answer 23

Correct!

Answer 24

thank she went back and read what u were saying

Answer 25

thank u

Answer 26

Alright. Any more questions?

Answer 27

Do you have anymore questions you need help with?