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ella [17]
2 years ago
11

a train travelling at 60 km per hour completes the journey in 8 hour. How much faster would it have to travel to cover the same

distance in 6 hour ​
Mathematics
1 answer:
antiseptic1488 [7]2 years ago
4 0

Answer:

Total distance covered: 60x8 = 480

Speed needed to cover distance of 480 km in 6 hrs = 480/6 = 80 km/hr.

initial velocity : 60 km/hr.

Train needs to run faster with speed of 20km per hour to achieve same distance in 6 hrs.

Step-by-step explanation:

You might be interested in
How to solve 1/4-x=x/8
Contact [7]

Answer:

x=\frac{2}{9}

Step-by-step explanation:

\frac{1}{4}-x=\frac{x}{8}

  • With the equation's current format, we will have trouble solving with all these fractions. Especially the fraction \frac{x}{8} is very difficult to deal with, so my first step would be:

(\frac{8}{1})(\frac{1}{4}-x)=\frac{x}{8}(\frac{8}{1})

  • If we multiply both sides by this number, we will be able to get rid of the messy fraction on the right side as well as remove the fraction on the left side. Like so:
  • <em>I put the 8 I multiplied onto each side in fraction form simply for clarity. You do not need to do this.</em>

(\frac{8}{1})(\frac{1}{4}-x)=\frac{x}{8}(\frac{8}{1})\\\frac{8}{4}-8x=\frac{8x}{8}\\2-8x=x

  • After this point, let's put our variable, x, onto one side of this equation and any other integers on the other by adding and subtracting them from both sides.

2-8x=x\\-9x=-2

  • Now we divide so that x is isolated, and we are done.

x=\frac{-2}{-9}=\frac{2}{9}

 

6 0
3 years ago
Helppppppppppppppppppppp
prohojiy [21]
It has to be the 2 and 3 because when you multiply fractions you use keep change flip for example 2/3 divided by 2/3 you keep the first fraction 2/3 you change division to multiplication and you flip the last fraction which will be 2/3x3/2
7 0
3 years ago
Someone, PLEASE answer or explain what to do. I don't understand!!
Crank

Answer:

for 2 itll be 1 and for 3 itll be 4 and for 4 itll be 6 and for the 5 itll be the 8

Step-by-step explanation:

you had to just do the cross thing on a date table

5 0
2 years ago
Read 2 more answers
Lea sold 2 cherry pies and 4 pumpkin pies for a total of $116. Kali sold 7 cherry pies and 8 pumpkins pies for a total of $286.
Nitella [24]

Answer: the cost of one cherry pie is $18 and the cost of one pumpkin pie is $20

Step-by-step explanation:

Let x represent the cost of one cherry pie.

Let y represent the cost of one pumpkin pie.

Lea sold 2 cherry pies and 4 pumpkin pies for a total of $116. This means that

2x + 4y = 116 - - - - - - - - - - - - - -1

Kali sold 7 cherry pies and 8 pumpkins pies for a total of $286. This means that

7x + 8y = 286 - - - - - - - - - - - - 2

Multiplying equation 1 by 7 and equation 2 by 2, it becomes

14x + 28y = 812

14x + 16y = 572

Subtracting, it becomes

12y = 240

y = 240/12 = 20

Substituting y = 20 into equation 1, it becomes

2x + 4 × 20 = 116

2x + 80 = 116

2x = 116 - 80 = 36

x = 36/2 = 18

7 0
3 years ago
At Glenridge High School, 20 percent of the
Makovka662 [10]

Answer:

40 percent

Step-by-step explanation:

60 - 20 = 40

Reasoning: The amount of seniors that attended was 20 percent, so 60 (total students) percent minus 20 percent is equal to 40 percent.

Hope this helps!

3 0
2 years ago
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