6.) A hardware store makes a mixed bag of 42 items using screws, bolts, and washers. The cost of screws are $3.00 each, bolts cost $2.00 each, and washers are $1.50 each. The mixture calls for four times as many screws than bolts. The total cost of the mixture is $102.00. How much of each item did the store use?

S+b+w=42
3s+2b+1.5w=102
S=4b

i have that much so far, but idk what to do from there

Question

6.)	A hardware store makes a mixed bag of 42 items using screws, bolts, and washers. The cost of screws are $3.00 each, bolts cost $2.00 each, and washers are $1.50 each. The mixture calls for four times as many screws than bolts. The total cost of the mixture is $102.00. How much of each item did the store use? 
 
S+b+w=42
3s+2b+1.5w=102
S=4b


i have that much so far, but idk what to do from there

faiithhh · Answer

@Burak do you think you could help me out with this? :)

faiithhh · Answer

@3mar

3mar · Answer

Yes, I could, but I am studying with me brother!

When I am done, I will tell you!

faiithhh · Answer

thank you!

3mar · Answer

I am sorry for late!
Do you still need help?

faiithhh · Answer

i do still need help if anyone's available.

3mar · Answer

I am with you if you faced any difficulties!

3mar · Answer

@faiithhh
Do you still need help?

faiithhh · Answer

i got it!! sorry, i was away from my laptop, but i understand it now. thanks anyways (:

3mar · Answer

I am happy to hear that.
What matters is that you got the idea!

Just if you need any help, don't hesitate to ask me and I will never be late for you In Sha' Allah.