Question

Can someone help me with this?
B. Use model 1 to determine the cost in 2000 of what cost $10,000 in 1975.
C. Use model 2 to determine the cost in 2000 of what cost $10,000 in 1975.

Answer 1

B. Use model 1 to determine the cost in 2000 of what cost $10,000 in 1975.

Answer 2

C= 952 (25)+15,162 or C= 952 (30)+15,162

Answer 3

C. Use model 2 to determine the cost in 2000 of what cost $10,000 in 1975.

Answer 4

what is model1,2?

Answer 5

The first picture has the equation for model 1 and 2.

Answer 6

okay, I didn't notice that pic :D..
wait solving...

Answer 7

Okay

Answer 8

if you put x=25 in the first equation, you get y which is the answer

Answer 9

38,287

Answer 10

i guess you did that way.... that should be correct.

Answer 11

and in the second equation what did you put?

Answer 12

I got 38,614

Answer 13

And both of them were wrong.. I have a similar problem pulled up now

Answer 14

hmmm.... i will ask @phi

Answer 15

is the answer 32000, just asking?

Answer 16

the "fine print" says x is the number of years from 1980
if we want the number for year 2000, we want to use x= 2000-1980= 20
(not sure how we got 30!)

Answer 17

I think it was 32,202 but I cant see it any more.

Answer 18

@phi is here...
He is awesome....... dont worry @Destinyyyy

Answer 19

So I ignore 1975??? O.o

Answer 20

the formula we use says "x is years from 1980".
ok, then that is what we do.

Answer 21

for the first one you sub in 20 for x

Answer 22

34,202

Answer 23

ok

Answer 24

Is that the final answer?

Answer 25

it depends, do they want the exact number, or do they want you to round it to the nearest thousand?

Answer 26

It says round to the nearest thousand dollar as needed.

Answer 27

I know for part (a) you should round. (it is hard to read a graph very accurately)

Answer 28

Opps sorry read the wrong one. It says round to the nearest dollar as needed

Answer 29

then that is the answer (without the comma, probably)

Answer 30

Okay..What about C.?

Answer 31

Do the same thing?

Answer 32

x is still 20, but use a different equation

Answer 33

29,964

Answer 34

if you go by the graph, it looks like 32,000

Answer 35

Yes thats the answer for A.

Answer 36

I got a different number for part c

Answer 37

is your name destiny cuz my name is desteny just with an e insted of an i

Answer 38

15,964

Answer 39

can you show your work?

Answer 40

-2(20)^2 +1020 (20) +14364
-2(400)+ 2400 +14,364
15964

Answer 41

1020*20 is not 2400

Answer 42

Yes my name is Destiny.

Answer 43

oh cool

Answer 44

Opps guess I typed plus instead of multiply

Answer 45

C = -2 (20^2) + 1020(20) + 14,364
C = -2(400) + 20,400 + 14,364
C = -800 + 20,400 + 14,364
C = -800 + 34,764
C = 33,964......I am getting this

Answer 46

Yes I just got that

Answer 47

So 33,964 is the final answer?

Answer 48

yes

Answer 49

Okay. Thank you!

Answer 50

if it does not have to be rounded...then yes

Answer 51

Good job in helping her, everyone..... :D