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
mina [271]
3 years ago
7

1) Luis hizo una excursión de 20 km 75 hm 75 dam 250 m en tres etapas. En la primera recorrió 5 km 5hm, y en la segunda 1 km 50

dam más que en la anterior. a) ¿Cuánto recorrió en la tercera etapa? b) Expresa el resultado en metro
Mathematics
1 answer:
Aleks [24]3 years ago
6 0

Answer:

21500 m

Step-by-step explanation:

We will divide this point into four parts and we will pass it by the meter:

Total: (20 km * 1000 m / 1 km) + (75 hm * 100 m / 1 hm) + (75 dam * 10 m / 1 dam) + 250 m = 20000 m + 7500 m + 750 m + 250 m = 28500 m

First stage: (5 km * 1000 m / 1 km) + (5 hm * 100 m / 1 hm) = 5000 m + 500 m = 5500 m

Second stage: (1 km * 1000 m / 1 km) + (50 dam * 10 m / 1 dam) = 1000 m + 500 m = 1500 m

The value of the third stage would be the subtraction between the total and the first and second stage:

Third stage: 28500 m - 5500 m - 1500 m = 21.500 m

He traveled 21500 meters in the third stage

You might be interested in
I really need help with this question!
Bingel [31]
I would convert -2pi / 3 to degrees first by multiplying by 180degrees / pi. It equals 120 degrees.

120 degrees is in quadrant II, which is 90 degrees plus 30 degrees. It is 60 degrees from the 180 degrees. 
So the reference triangle you use is 60 degrees.
Cos60 = 0.5
sin60 = sqrt(3) /2

But in quadrant II the only trig ratio that's positive is sin; all others are negative. 
So cos120 = -0.5
sin60 = sqrt(3) /2

<span>Keeping in mind that points on unit circle are (cos, sin), the point is </span>(-0.5, <span>sqrt(3) /2).
</span>
6 0
3 years ago
Help please I will give you a lot of points
uysha [10]

Answer:

2 5/7 5/7 -1/7, -5/7, 1 2/7, -2 2/7, -1 5/7

8 0
2 years ago
Q # 15 please help me to resolve
Dimas [21]
The last one is the correct answer.
7 0
3 years ago
What is 2 2/3 x 3 1/3 x 2 1/3
madreJ [45]

Answer:

  20 20/27

Step-by-step explanation:

  (2 2/3)(3 1/3)(2 1/3) = (8/3)(10/3)(7/3) = 560/27 = 20 20/27

_____

<em>Additional comment</em>

The first two numbers can be written as a difference and a sum:

  = (3 -1/3)(3 +1/3)(2 1/3)

  = (3·3 -1/3·3 +3·1/3 -1/3·1/3)(2 1/3)

  = (9 -1/9)(2 +1/3) = 9·2 +9·1/3 -1/9·2 -1/9·1/3 = 18 +3 -6/27 -1/27

  = 20 20/27

7 0
3 years ago
On. If
34kurt

Answer:

answer choice c

Step-by-step explanation:

3 0
4 years ago
Other questions:
  • A store carries large bottles of water that hold 40 ounces of water, and small water bottles that hold 20 ounces of water. The s
    8·1 answer
  • What's greater 0.2 or 0.2-repeating
    8·1 answer
  • Many states are carefully considering steps that would help them collect sales taxes on items purchased through the Internet. Ho
    9·1 answer
  • Please help ASAP (28 points)
    5·1 answer
  • At last year's company picnic, 25 pounds of ground beef were needed to make 100 hamburgers.How many pounds of ground beef will b
    7·1 answer
  • What conclusion can you make from the information below?
    12·1 answer
  • It is recommended that people have 1 g of calcium each day how many milligrams of calcium is that
    6·2 answers
  • Solve 2,401 = 76 – 2x.
    11·2 answers
  • Is this correct? plz answer only if you know for sure.
    10·1 answer
  • Please help me on this question (answer all parts please)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!