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sveta [45]
3 years ago
6

MARK BRAINLIEST

Mathematics
1 answer:
yawa3891 [41]3 years ago
7 0

Answer:

The original price was $36,000.  

It depreciates by $2,400 each year.

It’ll take 15 years for it to fully depreciate to zero

Step-by-step explanation:

To get how much the original price was, you replace x with 0 in the equation y=-2,400x+36,000 since it is 0 years at that time. When you do that, you get 36,000.  It declines by $2,400 each year because the coefficient is 2,400x. To get the last part, you have to divide 36,000 by 2,400 and then you get 15.

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Amina posts three large letters the postage is the same for each letter she pays with a £20 note her change is £14.96 what is th
soldi70 [24.7K]

Answer:

The cost of posting one letter = £1.68

Step-by-step explanation:

Total amount Amina has = £20

Amina's change = £14.96

Total cost spent on posting the letters = £20 - £14.96 = £5.04

And we're told that she posts 3 letters in total, with the cost of posting each letter the same.

Cost of posting 3 letters = £5.04

Cost of posting only 1 letter = (£5.04/3) = £1.68

Hence, the cost of posting a letter = £1.68

Hope this Helps!!!

4 0
3 years ago
Read 2 more answers
The area of a rectangle is x² + 3x – 28 and the width is x + 7. What is the length of the
g100num [7]

Answer:

X+4

Step-by-step explanation:

length times width = area

(X+7)(X-4) = x^2 +3x-28

6 0
3 years ago
Suppose p(a) = 0.40 and p(a 
sveticcg [70]
Between the probability of union and intersection, it's not clear what you're supposed to compute. (I would guess it's the probability of union.) But we do know that

P(A\cup B)+P(A\cap B)=P(A)+P(B)


For parts (a) and (b), you're given everything you need to determine P(B).

For part (c), if A and B are mutually exclusive, then P(A\cap B)=0, so P(A\cup B)=P(A)+P(B). If the given probability is P(A\cup B)=0.55, then you can find P(B)=0.15. But if this given probability is for the intersection, finding P(B) is impossible.


For part (d), if A and B are independent, then P(A\cap B)=P(A)\cdot P(B).
8 0
3 years ago
1:0,1+2:0,2+3:0,3...+9:0​
s2008m [1.1K]

Answer:

15

Step-by-step explanation:

answeram I righatjfj

6 0
3 years ago
Please give an explanation and the answer to this question for 15 points thanks.
Alchen [17]

Answer:

y=29

Step-by-step explanation:

Since the angles are across a vertex from one another, they are congruent and equal. You can also see this by reflecting  or folding it in half through the vertex. They will be the same. This means we can write the following equation and solve using inverse operations:

4y-8=79+y

4y-y-8=79+y-y

3y-8=79

3y-8+8=79+8

3y=87

y=29

4 0
3 years ago
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