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My name is Ann [436]
3 years ago
10

Un automóvil se desplaza 30 1/5 millas en 2/3 de hora. ¿Cuál es la velocidad promedio en millas por hora, del automóvil?

Mathematics
2 answers:
yarga [219]3 years ago
3 0

Queremos encontrar la velocidad promedio de un automóvil dado que conocemos cuanto se desplaza y cuanto tarda en realizar ese desplazamiento. Veremos que la velocidad promedio es 45.3 millas por hora.

Recordar que definimos velocidad promedio como el cociente entre la distancia recorrida y el tiempo que se tarda en recorrer esa distancia.

Aca tenemos:

Desplazamiento = (30 + 1/5) cm

Tiempo = (2/3 horas)

Entonces la velocidad esta dada por:

V = \frac{(30 + 1/5)mi}{2/3 h} = \frac{(151/5)mi}{2/3 h} = 45.3 mi/h

Asi podemos concluir que la velocidad promedio es 45.3 millas por hora.

Sí quieres aprender más sobre velocidad, puedes leer:

brainly.com/question/25316464

Salsk061 [2.6K]3 years ago
3 0

The speed of the automobile is 45.3 miles per hour

The formula for calculating the speed of the automobile is expressed as:

  • Speed = Distance/Time

Given the following parameters:

  • Distances = 30.2 miles
  • Time = 2/3 hour

Substitute into the formula:

Speed = 30.2 * 3/2

Speed = 15.1 * 3

Speed = 45.3 miles/hr

Hence the speed of the automobile is 45.3 miles per hour

Learn more on speed here:brainly.com/question/4931057

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horsena [70]

Answer:

120 cc yards of water

Step-by-step explanation:

A farmer has 1,000-acre farm. And she irrigates her fields with 120,000 cubic yards of water. We are asked to find how many cubic feet of water does she apply per acre?

1000 acre is irrigated by = 120000 cc yard of water

Hence 1 Acre is irrigated by

= \frac{120000}{1000} cc yards of water

Hence 1 Acre is irrigated by 120 cc yards of water .

8 0
3 years ago
Myra takes 2hours to plant 50 flower bulbs. Francis takes 3 hours to plant 45 flower bulbs. Working together, how long should it
crimeas [40]

Answer:37 and half hrs


Step-by-step explanation:


This is what I get


Myra: 50/2= 25 bulbs/hr.

Francis: 45/3= 15 bulbs/ hr


25+15= 40/hr. Together per hr

Need to find 150 bulbs how many hrs


40/1=150/t

40t=150

T= 150/4

T= 37.5


37hrs and 1/2


4 0
3 years ago
SOMEONE PLEASE JUST ANSWER THIS FOR BRAINLIEST!!!
NARA [144]

ANSWER

Step 3

EXPLANATION

The given polynomial expression is:

2 {p}^{2}  - 3p - 7 - (3 {p}^{2}  + p - 5)

Fatau correctly expanded the parenthesis in the first step.

2 {p}^{2}  - 3p - 7 - 3 {p}^{2}   -  p  +  5

Fatau also correctly grouped the like terms to obtain:

(2- 3) {p}^{2}   + (- 3 - 1)p  + (- 7 +  5)

Fatau committed a mistake at the third step.

Instead of obtaining,

- {p}^{2} - 4p   - 2

He mistakenly got:

{p}^{2}    - 2p  +2

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3 years ago
PLEASE HELP URGENT!!!!
Lapatulllka [165]

Answer:

Australia will have about 27 million

China will have about 1.41 billion

Mexico will have 133.35 million

Zaire will have about 100.9 million

Australia 2000 19,169,200 multiply your growth rate by 2 then divide it by your population your growth rate

China 1.2 billion in 2000 multiply your growth rate by 2 then divide it by your population your growth rate

Same for Mexico

and Zaire

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3 years ago
How many significant figures are in the number 0.0905?
algol [13]

Answer:

Number of Significant Figures: 3

The Significant Figures are 9 0 5

Step-by-step explanation:

7 0
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