3 years ago

A freight train traveled 144 miles in 6 hours. At what rate, in miles per hour, did the train travel?

Mathematics

2 answers:

Maslowich3 years ago

6 0

Answer:

its 24mph

That’s your answer.

LuckyWell [14K]3 years ago

4 0

Answer:

144 mi / 6 hrs = x mi / 1 hr

Cross multiply

6x=144

X=24

So 24 mi/hr

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Multiply. Write your answer as a fraction in simplest form. 8 X 9

Kamila [148]

Answer:

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Step-by-step explanation:

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2 years ago

Consider the line y=10 x -1 and the point P=(2,0). (a) Write the formula for a function d(x) that describes the distance between

LuckyWell [14K]

Answer:

the formula for a function d(x) that describes the distance is $d(x)=\sqrt{101x^{2}-24x+5}$

Step-by-step explanation:

We are going to define final point $P_{f}=(2,0)$ , and initial point $P_{i}=(x,y)=(x,10x-1)$ , then we can use $d=\sqrt{(x_{f}-x_{i})^{2}+(y_{f}-y_{i})^{2}}$ , so we obtain $d(x)=\sqrt{(2-x)^{2}+(0-(10x-1))^{2}}$ , by developing it $d(x)=\sqrt{(2-x)^{2}+(0-(10x-1))^{2}}\\d(x)=\sqrt{4-4x+x^{2}+(1-10x)^{2}}\\d(x)=\sqrt{4-4x+x^{2}+1-20x+100x^{2}}\\d(x)=\sqrt{101x^{2}-24x+5}\\$