MATHEMATICS MIDDLE SCHOOL

Target sells 24 bottles of water for $3, and 36 bottles of water for $4. Which is the better buy and by how much?

Answers

Answer 1
Answer: rate
cost/amount
3/24=1/8, 1 doller per 8 botttles

4/36=1/9, 1 dollar=9 bottles

9>8
9-8=1
if by 'better buy' you mean cheaper price then
24 or $3 is better by 1 bottle per bottle
Answer 2
Answer: You should NEVER buy plastic water bottles! only the reusable ones, but if you must know, it's cheaper to buy the 24 pack, because if you divide 24 by $3 you get 0.8 for the cost of each water bottle.
If you divide 36 by $4 you get 0.9 for the cost of eact water bottle.

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Solve for X and Y 3x+(2 x-y)i = 6-3i

Answers

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x = 2 and y = 7

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Estimate the product . Choose a method for 33 x 76=

Answers

What I like to do it just round the numbers. 33 would go to 30. 76 would go to about 80. 30 times 70 equals about 2,100. Your answer should be somewhere around there.
Estimation: 30 x 80 = 2400
Method for Actual answer: (30 x 70) + (3 x 6)
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Answers

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