# Posts by puzzled

Total # Posts: 10

**math**

a box containing 4 identical books weighs 5kg. If the weight of the box is 600g, what is the weight of each book?

**math**

Thank you Ms. Sue!! :)

**math**

I bought 10 bananas. Each banana weighed 50 grams. If the price for bananas was $6.50 per kg, how much did I pay?

**chem - instrumental analysis**

A stock solution of ethanol is made by weighing out the correct amount of absolute ethanol in a tared beaker containing 15 ml of water. Why is it necessary to add water to the beaker before adding the ethanol?

**MATH**

Of all the videotapes in a large shipment, 21% have a defective tape, 16% have a defective case, and 11% have both defects. If you purchase one of the videotapes in this shipment, find the probability that it has the following. (a) A defective tape or a defective case. p = .26...

**math 141**

Maria just inherited $10,000. Her bank has a savings account that pays 4.1% interest per year. Some of her friends recommended a new mutual fund, which has been in business for three years. During its first year, the fund went up in value by 11%; during the second year, it ...

**science/chemistry**

The van der waals equation incorperates corrections for the ideal gas laws in order to account for the properties of real gases. one of the corrections accounts for 1:The kinetic energy being inversly proportional to the temperature 2:The possibility of chemical reactions ...

**math**

I bought 10 bananas. Each banana weighed 50 grams. If the price for bananas was $6.50 per kg, how much did I pay?

**probability in math**

can anyone help me with a probability question?

**physics**

How exactly does Free Body Diagrams work?

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