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VikaD [51]
3 years ago
8

Astrid is in charge of building a new fleet of ships. Each ship requires 40 tons of wood, and accommodates 300 sailors. She rece

ives a delivery of 4 tons of wood each day. The deliveries can continue for 100 days at most, afterwards the weather is too bad to allow them. Overall, she wants to build enough ships to accommodate at least 2100 sailors. How much wood does Astrid need to accommodate 2100 sailors?
Mathematics
1 answer:
Elena L [17]3 years ago
7 0

Answer: 280 tons

Step-by-step explanation: divide all at tons/pound which accumulated to 280 tons

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Find the selling price for the item flash drive: $12 markup:35%​
vesna_86 [32]

Answer:

16.2

Step-by-step explanation:

12*1.35=16.2

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4 0
3 years ago
Solve the following system of linear equations: 3x1+6x2+6x3 = -9 -2x1–3x2-3x3 = 3 If the system has infinitely many solutions, y
choli [55]

Answer:

The set of solutions is \{\left[\begin{array}{c}x\\y\\z\end{array}\right]=\left[\begin{array}{c}12\\-7-r\\r\end{array}\right]: \text{r is a real number}  \}

Step-by-step explanation:

The augmented matrix of the system is \left[\begin{array}{ccccc}3&6&6&-9\\-2&-3&-3&3\end{array}\right].

We will use rows operations for find the echelon form of the matrix.

  • In row 2 we subtract \frac{2}{3} from row 1. (R2- 2/3R1) and we obtain the matrix \left[\begin{array}{cccc}3&6&6&-9\\0&1&1&-7\end{array}\right]
  • We multiply the row 1 by \frac{1}{3}.

Now we solve for the unknown variables:

  • x_2+x_3=-7, x_2=-7-x_3
  • x_1+2x_2+2x_3=-2, x_1+2(-7-x_3)+2x_3=-2 then x_1=12

The system has a free variable, the the system has infinite solutions and the set of solutions is \{\left[\begin{array}{c}x\\y\\z\end{array}\right]=\left[\begin{array}{c}12\\-7-r\\r\end{array}\right]: \text{r is a real number}  \}

6 0
3 years ago
Question 3 of 10
Aleks [24]
C=+3 since your adding three more onto four
4 0
3 years ago
E^4x-5-e=0 Solve the equation for x
kati45 [8]

Answer:

x =  \frac{1}{4}  \times In(5 + e)

Step-by-step explanation:

{e}^{4x}  - 5 - e = 0 \\  {e}^{4x}  = 5 + e \\ 4x = In(5 + e) \\

\boxed{Answer:{\boxed{\green{x =  \frac{1}{4}  \times In(5 + e)}}}}

8 0
2 years ago
................................find 8% of 2.36.
slega [8]
2,36 ------- 100%
x ---------    8%
----------------------

 x = 2,36*8/100 = 0,18 

hope helped 
8 0
3 years ago
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