1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
topjm [15]
3 years ago
11

Jaime en un joven que vive en puyo con su padre. A jaime le gusta cosechar chonta con su padre los sabados en la mañana jaime ha

comprado un velocimetro y con el logra ver que la velosidad fe la canoa es de 12 m/s tambien mide que la velocidad de la corriente del rio es 10 m/s. Calcula el tiempo que se demora en atravesar el rio si tiene una anchura de 150m

Mathematics
1 answer:
xenn [34]3 years ago
7 0

Answer:

\large \boxed{\text{23 s}}

Step-by-step explanation:

Jaime is at point A and wants to get across the river to Point B.

They must head upstream towards Point C.

1. Calculate the net speed across the river.

∆ABC is a right triangle, so

\begin{array}{rcl}AB^{2} + BC^{2} & = & AC^{2} \\AB^{2} +10^{2} & = & 12^{2} \\AB^{2}+100& = & 144 \\AB^{2}& = & 44\\AB & = & \sqrt{44}\\& = & 2\sqrt{11}\\& \approx &\textbf{6.633 m/s}\\\end{array}

2. Calculate the time to cross the river

\text{Time} = \text{150 m} \times \dfrac{\text{1 s}}{\text{6.633 m}} \approx \textbf{23 s}\\\\\text{It will take $\large \boxed{\textbf{23 s}}$ to cross the river.}

You might be interested in
ella opend a coffe shop in her neighborhood. the graph below shows the number of cups of coffe sold each hour ,x, on the opening
Katen [24]
Time is 4 hrs., coffee is 0 cups. Point (4,0)
So A
5 0
3 years ago
Read 2 more answers
Find the distance between each pair of points
dolphi86 [110]

Answer: the correct answer is 20

Step-by-step explanation:

The formula for determining the distance between two points on a straight line is expressed as

Distance = √(x2 - x1)² + (y2 - y1)²

Where

x2 represents final value of x on the horizontal axis

x1 represents initial value of x on the horizontal axis.

y2 represents final value of y on the vertical axis.

y1 represents initial value of y on the vertical axis.

From the graph given,

x2 = - 7

x1 = 5

y2 = - 7

y1 = 9

Therefore,

Distance = √(- 7 - 5)² + (- 7 - 9)²

Distance = √(- 12²) + (- 16)²

= √(144 + 256) = √400

Distance = 20

5 0
3 years ago
8x+3=8x I need help
ANEK [815]
X=5/8 that is the answer lol
5 0
3 years ago
Please help me I really need this and show your work if possible
kogti [31]
The temperature at 9 am was -11 degrees.

We know that at 5 am, it was -7 degrees. Since the change of temperature is a negative number, then we subtract the absolute value of the change from -7. -7 - 3 = -10. Following this pattern, we then have:
-10 - 2 = -12 (6 am - 7 am)
-12 - 5 = -17 (7 am - 8 am)
-17 + 6 = -11 (8 am - 9 am, added since it was a positive change of temperature)

And our final answer is -11 degrees Fahrenheit.
5 0
2 years ago
Read 2 more answers
The perimeter of ABCD is 66 and DC is twice as long as CB how long is a B
Natali5045456 [20]
<span>Length = x Width = 2x
Perimeter = 2 * length + 2 * width
= 2x + 4x
= 6x 
6x = 66
x = 11 
</span><span>Length = x Width = 2x
Perimeter = 2 * length + 2 * width
= 2x + 4x
= 6x 
6x = 66
x = 11</span>
3 0
3 years ago
Other questions:
  • What os the slope of a line that is perpendicular to the line shown
    8·1 answer
  • Give the coordinates and quadrant of Point Z
    9·1 answer
  • Malia solved an equation, as shown below: Step 1: 6x = 48 Step 2: x = 48 – 6 Step 3: x = 42
    14·2 answers
  • Answer all for BRAINLIEST!!! And lots of points ASAP
    7·2 answers
  • Answer two questions about Equations A and B:
    15·1 answer
  • The minute hand of a clock is 6 inches long and moves from 12 to 1 ​o'clock. How far does the tip of the minute hand​ move? Expr
    8·1 answer
  • Solve. -1/2+(3/4*4/9)=
    15·1 answer
  • An 5 in. by 7 in. photo is reduced so that the width (the shorter dimension) is 4 in.
    14·1 answer
  • PLEASE PLEASE PLEASE PLEASE HELP MEEEE PLEASE I BEG
    14·2 answers
  • Kesha purchased begin mathsize 16px style 3 1 half end style gallons of paint for her house. If each bucket that Kesha has holds
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!