2 years ago

Train travels 60 miles in 40 minutes what is the average speed

Mathematics

2 answers:

postnew [5]2 years ago

8 0

Distance/time =60/40/60 as it is 40 minutes =2/3 hour= 90miles/hour

lora16 [44]2 years ago

3 0

The answer is 90 miles per hour.

You might be interested in

Zoe had a board 5 1/4 feet long she cut off a piece now the board is 3 5/6 feet long how long was the piece she cut off

uysha [10]

Least common denominator is 24

7 0

2 years ago

If ƒ(x ) = x^2 + 1 and g(x ) = 3x + 1, find [ƒ(2) - g(1)]^2.<br><br> 1<br> 2<br> 9

stepladder [879]

I think that the answer would be 2 if I am right

5 0

2 years ago

Read 2 more answers

Find the linear approximation of f(x)=lnx at x=1 and use it to estimate ln(1.38).

RideAnS [48]

$\bf f(x)=y=ln(x)\qquad 
\begin{cases}
x=1\\
y=ln(1)\to y=0
\end{cases}\\\\
-----------------------------\\\\
\left. \cfrac{dy}{dx}=\cfrac{1}{x} \right|_{x=1}\implies 1\impliedby m
\\\\\\
\textit{now, we know that }
\begin{cases}
x=1\\
y=0\\
m=1
\end{cases}\implies y-0=1(x-1)\implies y=x-1$

now, you're asked to use it when ln(1.38), which is just another way of saying x = 1.38

so set x = 1.38 and see what "y" is

5 0

3 years ago

WHICH EXPRESSION REPRESENTS THE SUM OF (2X-5Y) and (x+y)?

Novay_Z [31]

(2x-5y)+(x+y)=(2x+x)+(-5y+y)=3x-4y.

therefore:
(2x-5y)+(x+y)=3x-4y

3 0

3 years ago

The large Magellanic Cloud is a galaxy that orbits our milky way galaxy at a distance of 1.79 × 10^5 light years. which shows th

Softa [21]

It would be 179,000. You just multiply them together.

8 0

2 years ago