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Lera25 [3.4K]
2 years ago
8

The Broad Street subway line express train stops at city hall every 9 minutes. The local train stops at the station every 12 min

utes. If you arrived at the station just as both trains left, how long will you have to wait until they both arrive at the same time again?
Mathematics
2 answers:
dezoksy [38]2 years ago
6 0

Answer:

36 Minutes

Step-by-step explanation:

You have to find the lowest common multiple which you can do by listing the times tables for each number.

9,18,27,36,45,54

12,24,36,48,60,72

and finding the lowest multiple that matches.

Dmitry_Shevchenko [17]2 years ago
5 0

Both the train will meet after 36 minutes.

<h3>Concept:</h3>
  • To find when both the train will meet again at the same time, we need to find the LCM of the frequency.

<h3>How to solve the given question?</h3>
  • Frequency of express train = 9 minutes = 3 × 3
  • Frequency of local train = 12 minutes = 2 × 2 × 3
  • LCM = 2 × 2 × 3 × 3 = 36

Thus, both the train will meet after 36 minutes.

Learn more about LCM here:

brainly.com/question/21504246

#SPJ2

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The perimeter of a triangle is 110 inches. The ratio of the side measures are 6:7:9. Find the measure of each side.
erastova [34]

The ratio of the side measures are 6:7:9.

Let's assume length of three sides of the triangle is 6x, 7x and 9x.

Given,perimeter of a triangle is 110 inches.. Perimeter is the sum of all three sides of the triangle. So, we can set up an equation as follows:

6x+7x+9x= 110

22x =110

\frac{22x}{22} =\frac{110}{22} Dividing each sides by 22.

x=5.

Now we can plug in x=5 in all the expressions of sides.

So, 6x=6(5)=30,

7x=7(5)=35

9x=9(5)=45.

So, the sides of the triangle are 30 inches, 35 inches and 45 inches.

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3 years ago
Use the figure below to answer the questions.
Pavlova-9 [17]
The transformation is a reflection in the line  y=x followed by a reflection in the line  x=1 .

The mapping for a reflection in the line  y=x   is  (x,y) \rightarrow (y,x) .

That is simply swapping the coordinates.

A(-3,4) \rightarrow (4,-3)

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C(-1,3) \rightarrow (3,-1)

Now we reflect the resulting coordinates in the line  x=1  which has the mapping  (x,y) \rightarrow (2(1)-x,y)

So we transform the resulting coordinates as follows:

(4,-3) \rightarrow A'(2(1)-4,-3)

(0,-3) \rightarrow B'(2(1)-0,-3)

(3,-1) \rightarrow C'(2(1)-3,-1)

Hence we have

A'(-2,-3),B'(2,-3) \: and\: C'(-1,-1)
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3 years ago
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zhannawk [14.2K]
PRQ=VXW

I think! I hope this helps!
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Firlakuza [10]

Answer:

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Step-by-step explanation:

in the negative powers the negative sign stands for the fraction line symbol and the power stands for the bottom number.

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5 Points
Margarita [4]

Answer:

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Step-by-step explanation:

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(apex verified)

7 0
3 years ago
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