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2 years ago

Which explains why the graph is not a function?

Mathematics

1 answer:

torisob [31]2 years ago

6 0

Answer:

Step-by-step explanation:

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at 1:30 in the afternoon an old freight train and a new dart express train pull out of the new garland station going in opposite

nydimaria [60]

Solution: The speed of old freight train is 0.5 miles per minute and the speed of new dart express train is 1.5 miles per minute.

Explanation:

Let the speed of old freight train is x miles per minute and the speed of new dart express train is y miles per minute.

It is given that the speed of the dart express train is three times faster than the freight train. So, it can be written as,

$3x=y$ ....(1)

The trains are moving towards the opposite directions, therefore the distance between them is increased at the speed of $(x+y)$ miles per minute.

$Distance=Speed\times Time$

The distance between both train in 15 minutes is represented by $15(x+y)$ .

According to the given information the distance between trains is 30 miles in 15 minutes.

$15(x+y)=30$

$x+y=2$

Use equation (1) and put $y=3x$

$x+3x=2$

$4x=2$

$x=0.5$

Put this value in equation (1), to find the value of y.

$y=3(0.5)$

$y=1.5$

Therefore, the The speed of old freight train is 0.5 miles per minute and the speed of new dart express train is 1.5 miles per minute.

4 0

3 years ago

Ramiro is 3/10 as tall as the flagpole. The flagpole is 5/9 as tall as the nearby tree. The tree is 32 2/5 feet tall. How tall i

djyliett [7]

$x-\ Ramiro's\ height\\
y-\ Flapole's\ height\\
z-\ nearby\ tree\\\\
x=\frac{3}{10}y\\
y=\frac{5}{9}z \\z=32\frac{2}{5}\\\\\y=\frac{5}{9}*32\frac{2}{5}=\frac{5}{9}*\frac{162}{5}=18\\\\
x=\frac{3}{10}*18=5,4\\\\
Ramiro\ is\ 5,4\ feet\ tall.$

8 0

2 years ago

Is it possible for two linear functions whose graphs are parallel lines to have the same y-intercept?explain.

andrew-mc [135]

YES it is possibble because it just can

4 0

3 years ago

Read 2 more answers

Find the slope of the line passing through the points and .

sergejj [24]

Answer:

slope = - $\frac{7}{5}$

Step-by-step explanation:

Calculate the slope m using the slope formula

m = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

with (x₁, y₁ ) = (3, 4 ) and (x₂, y₂ ) = (8, - 3 )

m = $\frac{-3-4}{8-3}$ = $\frac{-7}{5}$ = - $\frac{7}{5}$

6 0

2 years ago

Henry has a length of string that is 2850 cm long he needs some pieces that are 78 cm long for an art project what is the greate

agasfer [191]

Answer:

About 36.5 pieces

Step-by-step explanation:

divide 2850 by 78 and round to the nearest tenth. hope this helped

7 0

3 years ago