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3 years ago

Estimate the difference 610-187

Mathematics

2 answers:

Irina18 [472]3 years ago

6 0

My answer is 424. I got this answer by regrouping numbers subtracting them and figured it out.

otez555 [7]3 years ago

4 0

400 because if you round 610 you will get 600 and if you round 187 you round up to get 200

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Zepler [3.9K]

It depends how much matching placemats and napkins are used

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3 years ago

Two six sided dice are rolled and the two dice equals 7. what is the probability that one die is a 3

irinina [24]

Let us solve the problem step by step.

here we have rolled two dice. So total no. of possible outcomes will be 6^2=36. These are (1,1),(1,2),(1,3),(1,4),(1,5),(1,6),(2,1),(2,2),(2,3),(2,4),(2,5),(2,6),(3,1),(3,2),(3,3),(3,4),(3,5),(3,6),(4,1),(4,2),(4,3),(4,4),(4,5),(4,6),(5,1),(5,2),(5,3),(5,4),(5,5),(5,6),(6,1),(6,2),(6,3),(6,4),(6,5),(6,6).

Now, among these cases the cases where the sum is seven for (1,6), (2,5), (3,4), (4,3), (5,2), (6,1) i.e. there are 6 cases.

Now, it is time to calculate the probability.

The required probability is,

p = (No. of cases favorable for the event)/(Total no. of cases)

=6/36 = 1/6

<h2>Therefore your answer is 1/6.</h2>

5 0

3 years ago

What is the cube root of 512 m^2n^15

galben [10]

Answer:

Step-by-step explanation:

It depends what mathematics you know

Perhaps the most basic way would be by approximation. You could start with, say, 5. 5*5*5= 125. Then 5 is to small to be the cube root of 512.

Try 10: 10*10*10=1000: Too bi. But now we know that the number we want is between 5 and 10.

Try 8: 8*8*8=512.

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4 years ago

From a train station, one train heads north, and another heads east. Some time later, the northbound train has traveled 12 miles

tigry1 [53]

9514 1404 393

Answer:

20 miles

Step-by-step explanation:

The north and east distances form the legs of a right triangle. The straight-line distance between the trains is the hypotenuse of that triangle. The Pythagorean theorem can be used to find the length of the hypotenuse (d).

d² = 12² +16²

d² = 144 +256 = 400

d = √400 = 20

The two trains are 20 miles apart.

Additional comment

You may recognize the given distances are in the ratio 3 : 4. You may recall that side ratios of 3 : 4 : 5 make a right triangle. If so, you recognize that the straight-line distance is (4 miles)×5 = 20 miles. (3:4:5 right triangles show up often in algebra and geometry problems, so might be something you want to look for.)

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3 years ago

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lorasvet [3.4K]

Answer:

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Step-by-step explanation:

Given

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