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Mrrafil [7]
3 years ago
11

A certain vine grows at a rate of three inches per day. A researcher starts observing it when t is 27 inches long.

Mathematics
1 answer:
drek231 [11]3 years ago
5 0
Day=0      inches=27
     1                      30
A. 3x +27
B. 3 rate per day
x=day
B.3x amount perday<span />
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Lera25 [3.4K]
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Can someone please express 105/20 as a mixed number in simplist form
storchak [24]
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7 0
3 years ago
I have a stamp collection. 70% of my stamps are Canadian and 30% are international. I have 500 more Canadian stamps than interna
shutvik [7]

Answer: N= 375, C= 875

Step-by-step explanation:  Let Canadian stamps=C

Let International stamps=N

C=875     and        N=375

 

C - 500=N,  .70(N + C) =C

Solve the following system:

{C-500 = N |     (equation 1)

0.7 (C+N) = C |     (equation 2)

Express the system in standard form:

{-N+C = 500 |     (equation 1)

0.7 N-0.3 C = 0 |     (equation 2)

Add 0.7 × (equation 1) to equation 2:

{-N+C = 500 |     (equation 1)

0 N+0.4 C = 350 |     (equation 2)

Divide equation 2 by 0.4:

{-N+C = 500 |     (equation 1)

0. N+C = 875. |     (equation 2)

Subtract equation 2 from equation 1:

{-N+0 C = -375. |     (equation 1)

0 N+C = 875. |     (equation 2)

Multiply equation 1 by -1:

{N+0 C = 375. |     (equation 1)

0 N+C = 875. |     (equation 2)

Collect results:

Answer: |  N = 375        and             C=875

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3 years ago
Which statements are true about the ordered pair (2, 3) and the system of equations?
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The answer is f when 2,3 is put in for the x and y then 18 should come out 3×2=6
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7 0
4 years ago
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