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03-22-2015, 05:47 PM
(This post was last modified: 09-01-2022, 01:03 AM by Fearless Community.
Edit Reason: Fixed Encoding
)
I'm doing revision all day today, but I've been doing some things already by creating a mind map of things, but When I went to revise Polymers (Chemistry) and Inequalities(Maths) I hit a block, I can't understand the questions and it's started not making sense, as well as I can't remember how the longer the chain of polymers changes the properties. It's just not going in anymore.
This sounds crazy but I've got exams on tuesday and it's just not going in.
This happened when I took a break for food.
I am stuck on this question in maths:
Duncan wants to buy some pencils and some ball point pens he wants to have more than twice as many pencils as ball-point pens, but must have at least 2 pens.
B. A pen costs 50p and a pencil costs 40p. Duncan has £6.50 to spread on pens and pencils. copy the inequality ()x + ()y ≤ 650 fill the blanks (marked with () ) and simplify it.
Ok after a lengthy time I came up with an answer of 5x +10y ≤ 650 but the answer sheet says 5x+ 4y=65. It makes no sense how would they simplify to that.
This sounds crazy but I've got exams on tuesday and it's just not going in.
This happened when I took a break for food.
I am stuck on this question in maths:
Duncan wants to buy some pencils and some ball point pens he wants to have more than twice as many pencils as ball-point pens, but must have at least 2 pens.
B. A pen costs 50p and a pencil costs 40p. Duncan has £6.50 to spread on pens and pencils. copy the inequality ()x + ()y ≤ 650 fill the blanks (marked with () ) and simplify it.
Ok after a lengthy time I came up with an answer of 5x +10y ≤ 650 but the answer sheet says 5x+ 4y=65. It makes no sense how would they simplify to that.
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Weyland Yutani - Building Better Worlds.
Signature credit to Tandy!