Math help!!!!?

Question

Describe a simple process for using rates and unit prices that might help someone who is having difficulty understanding these concepts.
Include an example

Answer 1

the RATE of something is a measure of how often it happens in a given time period. If you apply this to your gas service, for example, you are billed in CCM or hundred cubic feet. The RATE you pay for usage is the price for each HUNDRED CUBIC FEET that you use. Your total cost is rate times units used per month. A UNIT PRICE is the cost for each item, usually applied to items sold in larger quantity. For example, if you bought a 24 pack of water for $ 3.60, your UNIT price is 15 cents per bottle. You get this by dividing 3.60 by 24 to find out how much EACH SINGLE BOTTLE costs you. Unit pricing is also used in weight--if something is sold per pound, like cheese, it would give you the unit price in ounces. To get this, you divide the pound price by 16, which is the number of ounces in a pound. So if a POUND of cheese is $ 3.20, each ounce is 20 cents. Hope that helps you.

Answer 2

I'm presuming these are two distinct problems.

With rates, use the decimal point and multiply to figure interest, etc. 12% interest rate (annual), say for a credit card, gets applied at that rate over the number of days in a period divided by the days in a year (say 31 days in 365-day year). On a $1,000 balance, your bill would demand additional interest in a 31-day period of $10.19 ($1,000*.12*31)/365.

With Unit prices, the idea is to try and compare similar amounts of items sold by different manufacturers in varying weights. Say two companies make mustard and sell it in bottles that are not equal (Company A sells 12 oz bottles and Company B sells mustard in 10 oz bottles) If supermarkets sell the mustard for $1.50 a bottle each, "A" mustard's unit price is $1.50/12 oz = $0.125 per ounce, while "B" mustard's per unit price is $1.50/10 oz = $0.15 per ounce. The per unit price is there to show the consumer how much an equal amount of a given item costs.
Take care.