Jesslyn hypothesizes that the value of antique furniture can be modeled by exponential decay and that the value of a particular piece will decrease at a rate of 0.15% each year. if the furniture was originally valued at $15,000 in 1990 what should jesslyn expect the value of the furniture to be in 2010?

If this can be modelled by exponential decay, therefore the function must be in the form of:

A = Ao (1 + r)^t

where A is the final value, Ao is the initial = 15000, r is the rate of decay = -0.0015, t is time = 2010 – 1990 = 20

A = 15,000 (1 – 0.0015)^20

A = $14,556.36

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!

step-by-step explanation:

graph using a few selected

x         y

-1       15

0         6

1         2.4

2       0.96