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Igoryamba
2 years ago
13

Hank estimated the width of the door to his classroom in feet. What is a reasonable estimate?

Mathematics
1 answer:
adelina 88 [10]2 years ago
6 0
3 feet by eight feet
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Paul purchased a used vehicle that depreciates under a straight-line method.
netineya [11]

Answer:

Option B. $900

Step-by-step explanation:

Let

y ----> the value of the car

x ----> the time in years

we know that

The linear function in slope intercept form is equal to

y=mx+b

where

m is the slope or the depreciation rate

b is the y-intercept or initial value of the car

we have

The y-intercept or initial value is equal to

b=\$5,000

y=mx+5,000

we have the ordered pair (5,500)

substitute the value of x and the value of y of the ordered pair in the linear equation and solve for m

500=m(5)+5,000

5m=500-5,000\\5m=-4,500\\m=-\$900\ per\ year

Is negative because is a decreasing function

The linear equation is equal to

y=-900x+5,000

therefore

It would depreciate $900 each year.

4 0
3 years ago
Simplify this for me please!!! And fast
Anika [276]

-2xy + 5x² +4y -10x

Step-by-step explanation:

7 0
3 years ago
How many times as much does each item cost in 2010 as in 1960 is the movie tix it tickets in 1960 costed $.75 in in 2010 cost 9.
Harrizon [31]
13 times i think
You just divide 9.75 by .75 and you get 13
8 0
3 years ago
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You lose 4 points each time you
Anna11 [10]
The change is 6 because the pouts you lose depends on how many times you leave the shoes at home
3 0
2 years ago
The sum of 2 numbers is 38. one number is 10 more than the other.
son4ous [18]

Answer:

24, 14

Step-by-step explanation:

x + y = 38

x = 10 + y

You can substitute (10+y) into the top equation where the x is.

10 + y + y = 38

10 + 2y = 38

2y = 28

y = 14

Now plug 14 in for y in either equation to get x

x = 10 + 14

x = 24

8 0
3 years ago
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