1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Oksanka [162]
3 years ago
5

An automobile purchased for ​$38000 is worth ​$2300 after 7 years. Assuming that the​ car's value depreciated steadily from year

to​ year, what was it worth at the end of the third​ year?
The value 3 years after it was purchased is
Mathematics
1 answer:
mario62 [17]3 years ago
5 0

Answer:

11422.46

Step-by-step

2300=38000x⁷

x=.669872323

38000*.669872323³=11422.4614

You might be interested in
A manager wishes to determine the relationship between the number of miles traveled​ (in hundreds of​ miles) by her sales repres
kati45 [8]

Answer:

y=3.53 x +37.92  

And for 0 miles if we use the model we got:

y(0)= 3.53*0 +37.92 = 37.92

But for this case. No is not reasonable for a representative to travel o miles and have a positive amount of sales.

Step-by-step explanation:

For this case we assume the following data:

Miles traveled (X): 2,3,10,7,8,15,3,1,11

Sales (Y): 31,33,78,62,65,61,48,55,120

We want to found a linear model like this one : y = mx+b. Where:

m=\frac{S_{xy}}{S_{xx}}  

Where:  

S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}  

S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}  

With these we can find the sums:  

S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}=582-\frac{60^2}{9}=182  

S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}=4329-\frac{60*553}{9}=642.33  

And the slope would be:  

m=\frac{642.33}{182}=3.529  

Nowe we can find the means for x and y like this:  

\bar x= \frac{\sum x_i}{n}=\frac{60}{9}=6.667  

\bar y= \frac{\sum y_i}{n}=\frac{553}{9}=61.444  

And we can find the intercept using this:  

b=\bar y -m \bar x=61.444-(3.529*6.667)=37.917  

So the line would be given by:  

y=3.53 x +37.92  

And for 0 miles if we use the model we got:

y(0)= 3.53*0 +37.92 = 37.92

But for this case. No is not reasonable for a representative to travel o miles and have a positive amount of sales.

8 0
3 years ago
Dan is cutting 4.75 foot lengths of twine from a 240 foot spool of twine. He needs to cut 42 lengths, and says that 40.5 feet of
PtichkaEL [24]
So 4.75 times 42= 199.5 so take 240-199.5= 40.5 so he is correct
5 0
3 years ago
Maria bought 36 donuts at 12 for $7.99. How much money did Maria spend on donuts?
shtirl [24]

Answer:

23.97

Step-by-step explanation:

All you have to do is Divide 36 by 12 then multiply the answer you got from dividing by 7.99

4 0
3 years ago
(-7,-8),(-6,7) Distance formula
IRISSAK [1]

Step-by-step explanation:

let

(-7,-8) =(x1, y1)

and (-6,7)=(x2, y2)

by the formula

d=√(y2-y1) ²+(x2-x1) ²

=√(7+8)²+(-6+7)²

=√15²+1²

= √225+1

= √226

7 0
3 years ago
Find the cost per item and the cost per ounce for each one show your work.
Klio2033 [76]

Answer:

ps give more info I don't understand what you want

8 0
4 years ago
Other questions:
  • triangle P is similar to triangle Q. triangle P has two angle with measures of 41degress and 82 degrees. which two angle measure
    6·1 answer
  • Carla's plant was 10 2/3 inches tall. Yolanda's was 8 3/4 inches tall. 
    9·1 answer
  • Pls help :(
    9·2 answers
  • At a restaurant, your bill is $130. If you want to<br> leave a 10% tip,<br> what is your total?
    10·2 answers
  • Which set of fractions is ordered from least to greatest?
    5·2 answers
  • In 2011, the average daily temperature in Darrtown was 65°F. In 2012, the average daily temperature increased by 3% but then dec
    9·2 answers
  • Please solve for K.......
    10·2 answers
  • Help plss i'm lost i need help
    15·2 answers
  • 3. A landscape plan includes a rectangular flower bed that is surrounded the wood planks. In the drawing, the rectangular flower
    8·2 answers
  • The base of triangle M is four times the base of tri-
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!