A train traveled 350km in 2.5h. what was the average speed of the train?

Answers

Answer 1

Answer: So the train traveled 350 km in 2.5 h let's do the work together what do you think we start off with we can divide 350 by 2.5 tell me what your answer is when you've done the division

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Is 6.7 mi more precise than 6 mi?

Answers

Yes because precise means specific.

The answer is . . . no(and the reason is because you haven't provided enough information data for one to determine the precision of the distance).

"6.7 mi" you might want to argue is more precise simply because it measures this distance to the tenth of a mile

"6 mi" happens to equal "6.0 mi" which is also measured to the tenth of a mile.

Precision of a value is determined on the basis of repeatability and/or reproducibility. If the distance is measure 3 times with results that closely match each other - that's precision.

Unfortunately, you didn't provide us with enough information, so there's no way anyone could determine whether or not this measurement is precise.

Solve the equation r+11+8r=29

Answers

Combine like terms: r+8r=9r. subtract 11 from both sides 9r=18. r=2

Ok so lets evaluate this equation. First,we have to combine like terms which in this case us r only. So lets do it r+8r is simply 9r+11=29 so now since we want to isolate or in other terms get r the variable by itself we would have to subtract 11 form both sides. 29 -11 is simply 18 now we have 9r=18 divide 9 on both sides and r is equal to 2

Solve for x.

3x - 4 = 13

Answers

The solution of expression is,

⇒ x = 5.67

We have to given that;

Expression is,

⇒ 3x - 4 = 13

Now, We can simplify as;

⇒ 3x - 4 = 13

Add 4 both side, we get;

⇒ 3x - 4 + 4 = 13 + 4

⇒ 3x = 17

Divide by 3;

⇒ x = 17/3

⇒ x = 5.67

Thus, The solution of expression is,

⇒ x = 5.67

Learn more about the mathematical expression visit:

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We want the value of x. Add 4 to both sides to cancel out the -4 on the left.
3x=17
Now divide both sides by 3 to get the answer.
x=5.66666667

A student randomly draws a card from a standard deck and checks to see if it is his favorite suit. He then returns the card to the deck, shuffles, and repeats the experiment. He performs the experiments 30 times. Can the probability of drawing his favorite suit be found by using the binomial probability formula? Why or why not?Yes. The events are dependent; however, the 5% guideline can be applied to this situation.
No. The trials are fixed, but the probability of success changes for every trial.
No. The probability of success remains the same for every trial, but the trials are not fixed.
Yes. The outcomes can be classified into two categories, the trials are fixed, and the events are independent.

Answers

Answer:

Yes. The outcomes can be classified into two categories, the trials are fixed, and the events are independent.

Step-by-step explanation:

Hope this helps!!

In which quadrant is (1/2, -1.8)?Quadrant II
Quadrant IV
Quadrant III
Quadrant I

Answers

Answer:

Quadrant lV

Step-by-step explanation:

Quadrant l = (+,+)

Quadrant ll = (-,+)

Quadrant lll = (-,-)

Quadrant lV = (+,-)

This is how you can always remember, hope this helps!

38% convert into fraction

Answers

To convert a percentage into a fraction, we must first convert the percentage into a decimal. We can do that by either dividing the percentage by 100, or (my personal shortcut) just shifting the decimal point over two places to the left.

38% = 0.38

Now, all we need to do to convert it into a fraction is put the numbers to the right of the decimal point above a multiple of ten with as many zeros as there are numbers to the right of the decimal point. In this case:

0.38 = $(38)/(100)$

Now, all we need to do is reduce to find our fraction.

38 and 100 are both divisible by 2, so we will start off by doing that.

$(38 / 2)/(100 / 2) = (19)/(50)$

And that is our answer.
38% in fraction form is $(19)/(50)$ .
Hope that helped! =)

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