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quester [9]
3 years ago
14

The total length of two ships is 1841 feet. The difference in their lengths is 13 feet. Find the length of each ship.

Mathematics
1 answer:
lilavasa [31]3 years ago
8 0

9514 1404 393

Answer:

  927 ft

  914 ft

Step-by-step explanation:

The lengths are half the sum plus or minus half the difference:

  1841/2 ± 13/2 = {1854/2, 1828/2} = {927, 914} . . . feet

__

Let x represent the shorter length. Then x+13 is the longer length. Their total is ..

  x +(x +13) = 1841

  2x = 1841 -13

  x = (1841 -13)/2 . . . . half the sum minus half the difference

Then the longer length is ...

  x+13 = (1841/2) -(13/2) +13

  x +13 = (1841/2) +(13/2) . . . . half the sum plus half the difference

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From the information provided, the total cost can be calculated by multiplying the price of each item for the amount purchased and adding up the results:

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3 years ago
What is the value of the function f(x)=2x^2+3 when x=2?
Marina86 [1]
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5 0
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3 0
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Create the linear equation from the points (3,3) and (1,-5).
Kisachek [45]

Answer:

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Step-by-step explanation:

First, find the <em>rate of change</em> [<em>slope</em>]:

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y = 4x - 9

- 4x - 4x

_________

\displaystyle -4x + y = -9

_______________________________________________

3 = 4[3] + b

12

\displaystyle -9 = b \\ \\ y = 4x - 9

y = 4x - 9

- 4x - 4x

_________

\displaystyle -4x + y = -9

** You see? I told you it did not matter which ordered pair you choose because you will ALWAYS get the exact same result.

I am joyous to assist you anytime.

7 0
3 years ago
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