Question

Ahmed wishes to buy upto 20 notebooks for his shop. he can buy either type A for $1.50 each or type B for $3. each he has a total of $45 he can spend. he must have at least 6 of each type in stock

Answer 1

Hello @aminkhan I am going to try and walk you through this. If at any point you are lost please tell me

Answer 2

First let's gather our information.

He has a total of $45 to spend.

Type A note books all cost 1.50
If we divide 45 by 1.50 we will have 30 note books.

Type b not books are 3 dollars each.
If we divide 45 by 3 we will be able to buy 15 note books.

Answer 3

Now. If we need a minimum of 6 note books for each I think the easiest way would be to multiply the cost by 6.



So type A it would cost 9 dollars for 6 notebooks

For type B it would cost 18 dollars for 6 notbookes

Answer 4

9+18=27

Answer 5

So we have already lost 27 dollars from our original 45 right?

Answer 6

Let's subraxt that 27 now

Answer 7

We have 18 dollars left to spend.

Answer 8

We have what, 12 notebooks already, and 18 dollars left. So I would go with the cheaper option which would be type A note books.


If we divide 18 by 1.50 we would get 12 books.

We don't want to go over 20 notebooks.

Answer 9

If we divide 18 by 3(remaining money divided by cost of Type B notebooks) we would get 6 notbooks

Answer 10

So from here I am thinking we buy the bare minimum and work our way up

Answer 11

If we buy 2 TA(type A notebooks) and 2 TB(type B notebooks) we will have we will have 9 dollars left.

Answer 12

Now since we just bought 4 new note books our notebook total have gone from 12, up to 16

Answer 13

So if we buy ten of each note books we would have



10 type A notebooks
10 type B notebooks

And 0 dollars left over

Answer 14

Is that what the question was asking?

Answer 15

@thisgirlpretty is that right?!?

Answer 16

first we need to make inequalities
please make inequalities first then solve