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
kirill [66]
2 years ago
5

Sabrina y Diana asistieron a una conferencia fuera de sus respectivas ciudades. Despues de de la conferencia, Sabrina regresa a

su casa conduciendo a una velocidad promedio promedio de 65 millas por hora, mientras que Diana lo hace a una velocidad promedio de 50 millas por hora. Si la suma de sus tiempos de recorrido es igual a 11.4 horas, y si la suma de las distancias recorridas es igual a 690 millas, determine el tiempo que cada una de ellas necesito para llegar a casa.
Mathematics
1 answer:
kari74 [83]2 years ago
8 0

Answer:

Sabrina necesito 8 horas para llegar a su casa mientras que Diana necesito solo 3.4 horas.

Step-by-step explanation:

debemos resolver la siguientes equaciones:

A + B = 11.4

65A + 50B = 690

donde:

A = tiempo que le toma a Sabrina llegar a su casa

B = tiempo que le toma a Diana llegar a su casa

A = 11.4 - B

65 (11.4 - B) + 50B = 690

741 - 65B + 50B = 690

741 - 690 = 65B - 50B

51 = 15B

B = 51 / 15 = 3.4 horas

A = 11.4 - 3.4 = 8 horas

You might be interested in
Jules reads that 1 pint is equivalent to 0.473 liters. He asks his teacher how many liters there are in a pint. His teacher resp
andrey2020 [161]

One pint is equivalent to 0.473 liters which is approximately 0.47 liters if rounding off nearest to hundredth decimal places and 0.5 liters if rounding off nearest to tenth places.

Further explanation:

Jules reads that one pint is equivalent to 0.473 liters.

1\,\,{\text{Pint}}=0.473\,\,{\text{liters}}

But according to his teacher, one pint is about 0.47 liters.

1\,\,{\text{Pint}}\approx0.47\,\,{\text{liters}}

His teacher round off a value of one pint in liters nearest to hundredth places.

Also according to his parents, one pint is about 0.5 liters.

1\,\,{\text{Pint}}\approx0.5\,\,{\text{liters}}

His parents round off the value of one pint in liters nearest to tenth place.

Therefore, his parents and teachers are both right approximately.

Thus, one pint is equivalent to 0.473 liters which is approximately 0.47 liters if rounding off nearest to hundredth decimal places and 0.5 liters if rounding off nearest to tenth places.

Learn more:

1. Write an algebraic expression for the following word phrase the quotient of r and 12 brainly.com/question/1600376

2. 9 ten thousands ÷ 10 in unit form brainly.com/question/4786449

3. What is the value of the digit 4 in the number 84 230 brainly.com/question/106975

Answer details:

Grade: Middle School

Subject: Mathematics

Chapter: Decimal system

Keywords: Hundredth, pint, decimal places, liters, teacher, approximately, divisor, kg, share, rounding off

3 0
3 years ago
Which set of statements explains how to plot a point at the location (-2.5,3.75)?
Mekhanik [1.2K]

Answer:b

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
HELP PLEASE!!! ( VERY IMPORTANT TO LOOK AT THE PICTURE)<br><br> A. 9<br> B. 12<br> C. 15<br> D. 21
larisa [96]

Answer:

c

Step-by-step explanation:

.......,..............

8 0
3 years ago
A game uses tokens. Two-sixths of the tokens are blue. Three-sixths of the tokens are gold. What fraction of the tokens are eith
KatRina [158]

Answer:

One-sixth

Step-by-step explanation:

First we need to add the blue tokens (two-sixths) plus the gold tokens (two-sixths) when you add those you get five-sixths and since we are dealing with sixths we would subtract five-sixths from six-sixths

4 0
2 years ago
How many degrees are there if you add up the internal angles in a pentagon?
shepuryov [24]
The answer is 540 degrees ^-^
8 0
3 years ago
Read 2 more answers
Other questions:
  • Find the measure of each acute angle in a right triangle where the measure of one acute angle is 3 times the sum of the measure
    7·1 answer
  • What is 5-(n-4)=3(n+2)?
    8·1 answer
  • PLEASE HELP ME WITH THIS QUESTION!!!
    14·2 answers
  • The perimeter of a triangle is 28 feet. The sides of the triangle measure 10 feet, 9 feet, and x feet. Write and solve an equati
    8·1 answer
  • Show all your work. Indicate clearly the methods you use, because you will be scored on the correctness of your methods as well
    13·1 answer
  • Please help me!!
    6·1 answer
  • Your friends shuffle the cards and then deal them. Select probability of getting a red card. Select probability of getting a spa
    14·1 answer
  • HELP 25 POINTS ASAP. MAKE SURE YOU PUT ANSWER IN CORRECT ORDER
    6·1 answer
  • Which of the following represents the distance between x and y on a number line?
    6·1 answer
  • Which graph represents y=<br> y = ?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!