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Alexeev081 [22]
2 years ago
12

A boat travels 400 miles at a rate of 20 miles per hour. How many hours did it travel?

Mathematics
2 answers:
Taya2010 [7]2 years ago
7 0

Answer:

Time taken = 20 hours

Step-by-step explanation:

Speed  = distance travelled / time taken

20 mi/hr = 400 mi / time taken

Time taken = 400 mi / 20

Time taken = 20 hours

UNO [17]2 years ago
6 0

Answer:

20 hours

Step-by-step explanation:

400 divided by 20 is 20

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Answer:

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Step-by-step explanation:

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4 years ago
A real number between √13 and √14
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Answer:

3.7

Step-by-step explanation:

6 0
3 years ago
9/20
NISA [10]

For this case we must find the solution of the following quadratic equation:

x ^ 2 + 5x + 7 = 0

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a = 1\\b = 5\\c = 7

Then, the solution is given by:

x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2a}

Substituting the values:

x = \frac {-5 \pm \sqrt {5 ^ 2-4 (1) (7)}} {2 (1)}\\x = \frac {-5 \pm \sqrt {25-28}} {2}\\x = \frac {-5 \pm \sqrt {-3}} {2}

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4 0
4 years ago
What is the coefficient of the term of degree 8 in the polynomial below?
Nesterboy [21]
The correct answer is:  [D]:  "5 (five)" .
______________________________________________________
<u>Note</u>:  The term of "degree 8" is the term with a variable with 
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The "coefficient" is  "5" (five).
______________________________________________________
5 0
3 years ago
Really need help! Brainliest to correct!
zlopas [31]

Answer:

<u>Given</u>:

  • R(x) = 59x - 0.3x²
  • C(x) = 3x + 14

<u>Find the following</u>:

  • P(x) = R(x) - C(x) = 59x - 0.3x² - 3x - 14 = -0.3x² + 56x - 14
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  • P(80) = 2800 - 254 = 2546
7 0
3 years ago
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