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kiruha [24]
3 years ago
8

Please explain how to find the proportional relationship.

Mathematics
1 answer:
zvonat [6]3 years ago
7 0

Answer:

The table A represent a proportional relationship

The table B not represent a proportional relationship

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form k=\frac{y}{x} or y=kx

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

<u><em>Verify each table</em></u>

<em>Table A</em>

Find the value of k

For x=1,y=2 ------> k=\frac{2}{1}=2

For x=3,y=6 ------> k=\frac{6}{3}=2

For x=4,y=8 ------> k=\frac{8}{4}=2

For x=5,y=10 ------> k=\frac{10}{5}=2

All the values of k are the same

so

The table A represent a proportional relationship

The equation of the proportional relationship is equal to

y=2x

<em>Table B</em>

Find the value of k

For x=1,y=3 ------> k=\frac{3}{1}=3

For x=2,y=4 ------> k=\frac{4}{2}=2

The values of k are different

so

The table B not represent a proportional relationship

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KMZ~ KDH; find z.<br> F<br> 21<br> D<br> 6x + 3<br> E 17<br> G<br> 8x-1<br> C
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Answer:

x=8

Step-by-step explanation:

Triangle DCE is similar to EGF

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Cross multiply

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6 0
3 years ago
Which value of x is a solution of x &lt; -2?<br> A.<br> -3<br> B. -2<br> C.<br> -1<br> D. 0
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Answer:

A

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-3<-2

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a train travelling at 60 km per hour takes 18 second to cross a 180 metre long platform find the length of the train​
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Lengthof train=X
platform length=180
total distance=x+180
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Time =18s
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