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ki77a [65]
3 years ago
8

Mr. Warren is planting two new trees this year. When purchased, the first tree is initially 3 feet tall and grows at a rate of 1

5 inches per year, and the second tree is 4 feet tall and grows at a rate of 10 inches per year. After how many years will Mr. Warren's trees be the same height?
Mathematics
1 answer:
REY [17]3 years ago
7 0

Answer:

2.4 years

equal height is 72 inches

Step-by-step explanation:

initial height of tree one = 36inches

initial height of tree two = 48inches

36 + 15x = 48 + 10x

15x = 12 + 10x

5x = 12

x = 2.4 years

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Answer:

y= -1/6x+2

Step-by-step explanation:

3=-1/6(-6)+b

3=1+b

3-1=1-1b

2=b

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3 years ago
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Liono4ka [1.6K]

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Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
17.5% of 120 can be worked out using the following method find 10% of 120=12 then 5% of 120=6 then 2.5% of 120=3. Adding 17.5% o
Oliga [24]

Answer:

17.5% of 360 =  63

Step-by-step explanation:

We are given a process of finding  17.5% of 120. Following the same process we have to determine the 17.5% of 360.

17.5% can be break down as 10% + 5% + 2.5%

Thus,

STEP 1 : Find  10% of 360 , we get,

\frac{10}{100} \times 360=36

STEP 2 : find  5% of 360, we get,

\frac{5}{100} \times 360=18

STEP 3: find 2.5% of 360 , we get,

\frac{2.5}{100} \times 360=9

STEP 4: 17.5% of 360 =  10% of 360 + 5% of 360 +  2.5% of 360

⇒ 17.5% of 360 =  36 + 18 + 9

⇒ 17.5% of 360 =  63

8 0
3 years ago
After a new $28,000 car is driven off the lot, it begins to depreciate at a rate of 18.9% annually.
REY [17]

Answer:

C(t) = $28,000(0.811)^t  (Answer A)

Step-by-step explanation:

The value of the car is decreasing.  Thus, by the end of the first year of ownership, the car will have the value $28,000(1 -0.189)^1, where the "-0.189" represents DECAY instead of GROWTH.

Please use " ^ " to indicate exponentiation.

Then the desired formula is C(t) = $28,000(0.811)^t  (Answer A)

4 0
3 years ago
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