All categories

3 years ago

Atrain travels at a speed of 58.6 km'hi Express this speeda.msb. m/min

Mathematics

1 answer:

marishachu [46]3 years ago

8 0

Answer:

16.27

Step-by-step explanation:

if 1000m rep 1km

therefore :

58.6km/h in ms = 58.6km×1000/3600

=16.277 ms

You might be interested in

Nick went bike ride to the store 5 miles away.If it took nick 1/2 of an hour to get there and 2/5 to get back,what was his avera

pav-90 [236]

Answer:

11.1m/s

Step-by-step explanation:

Given parameters:

Distance of store = 5miles

Time to store = $\frac{1}{2}$ hr

Time from store = $\frac{2}{5}$ hr

Unknown:

Average speed = ?

Solution:

Average speed is the total distance divided by the total time taken.

Average speed = $\frac{total distance}{total time taken}$

Total distance = distance to store + distance from store = 5 + 5 = 10miles

Total time taken = $\frac{1}{2}$ hr + $\frac{2}{5}$ hr = $\frac{9}{10}$ hr

Average speed = $\frac{10}{\frac{9}{10} }$ = 10 x $\frac{10}{9}$ = 11.1m/s

5 0

3 years ago

PLEASE HELP!!!!

wel

Answer:

Mike is not right

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its surface areas is equal to the scale factor squared

Let

z----> the scale factor

x----> surface area of the enlarged rectangular prism

y-----> surface area of the original rectangular prism

$z^{2}=\frac{x}{y}$

In this problem we have

$z=2$

substitute

$2^{2}=\frac{x}{y}$

$4=\frac{x}{y}$

$x=4y$

The surface area of the enlarged rectangular prism is 4 times the surface area of the original rectangular prism

therefore

Mike is not right

<em>Verify with an example</em>

we have a rectangular prism

$L=5\ m$

$W=2\ m$

$H=3\ m$

The surface area of the prism is equal to

$SA=2(LW)+(2L+2W)H$

substitute the values

$SA=2*(5*2)+(2*5+2*2)*3=62\ m^{2}$

If he doubles each dimension of any rectangular prism

then

the new dimensions will be

$L=5*2=10\ m$

$W=2*2=4\ m$

$H=3*2=6\ m$

The new surface area will be

$SA=2*(10*4)+(2*10+2*4)*6=248\ m^{2}$

$248/62=4$

therefore

The surface area of the enlarged rectangular prism is 4 times the surface area of the original rectangular prism

8 0

3 years ago

Put these numbers in order from least to greatest.<br> -15-26/40, -15, 18/25, 15.85

Norma-Jean [14]

-15 26/40=<span>-15.65
-15
18/25=0.72
15.85
so From least to greatest
-15.65, -15, 0.72, and 15.85

</span>

6 0

3 years ago

The graph of F(x), shown below in pink, has the same shape as the graph of

Sergio039 [100]

<em>Greetings from Brasil...</em>

In this problem we have 2 translations: 4 units horizontal to the left and 3 units vertical to the bottom.

The translations are established as follows:

→ Horizontal

F(X + k) ⇒ k units to the left

F(X - k) ⇒ k units to the right

→ Vertical

F(X) + k ⇒ k units up

F(X) - k ⇒ k units down

In our problem, the function shifted 4 units horizontal to the left and 3 units vertical to the bottom.

F(X) = X³

4 units horizontal to the left: F(X + 4)

3 units vertical to the bottom: F(X + 4) - 3

So,

F(X) = X³

3 0

4 years ago

Read 2 more answers

How do I solve this and check all the solutions?

Oksana_A [137]

Answer:

sir answer is x=6

Step-by-step explanation:

I hope this 9s ok

8 0

3 years ago

Read 2 more answers

Atrain travels at a speed of 58.6 km'hi Express this speeda.msb. m/min​

Atrain travels at a speed of 58.6 km'hi Express this speeda.msb. m/min