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2 years ago

Show a way to count from 170 to 410 using tens and hundreds. circle at least 1 benchmark number

Mathematics

2 answers:

Anastasy [175]2 years ago

6 0

Benchmark are numbers that are used as standards to which the rest of the data is compared to. When counting numbers using a number line, the benchmark numbers are the intervals written on the axis. For benchmark numbers of 10, the number line on top of the attached picture is shown. Starting from 170, the tick marks are added by 10, such that the next numbers are 180, 190, 200, and so on and so forth. When you want to find 410, just find the benchmark number 410.

The same applies to benchmark numbers in intervals of 100. If you want to find 170, used the benchmark numbers 100 and 200. Then, you estimate at which point represents 170. For 410, you base on the benchmark numbers 400 and 500.

Lisa [10]2 years ago

6 0

Answer:

In order to reach from 170 to 410, we have to take 2 jumps of 100 and 4 jumps of 10.

Step-by-step explanation:

We have to count from 170 to 410.

We can only use tens and hundreds to do so.

First, we take a jump of 100.

170 + 100 = 270

We, again take a jump of 100.

270 + 100 = 370

We, again take a jump of 100.

370 + 100 = 470

But, we need to reach 410 which is way behind on the number line. Thus, after reaching 370 we cannot take a jump of 100.

Thus, 370 can be considered as a benchmark number.

After 370, we take jumps of 10 only.

370 + 10 = 380

380 + 10 = 390

390 + 10 = 400

400 + 10 = 410

Thus, we have reached the required number.

So, in order to reach from 170 to 410, we have to take 2 jumps of 100 and 4 jumps of 10.

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2 years ago

APEX HELP ASAP!!!!

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2. We know that the steamboat takes five hours to complete the trip. The tall ship takes more time, at ten hours to complete the trip. We do not have the exact speeds of the steamboat or of the tall ship, but we do know that the tall ship is 10 knots slower than the steamboat. We likewise do not know the exact distance travelled by either ship, but we do know that both travel the same distance. We want to find out how fast each boat travels. We expect the answers to be in knots, with a difference of 10.

3. We know that distance is equivalent to the product of speed of a boat multiplied by the time of travel. For the trip going to the island, we will use the steamboat. Let its speed be x knots (equivalent to x nautical miles per hour), and let the distance going to the island be d nautical miles. Given that the time takes is 5 hours, this means that d = 5x.

4. If we let x be the speed of the boat you are taking to the island (the steamboat), then we know that the speed of the other boat (the tall ship) is 10 knots less than the steamboat's. So the speed of the tall ship (for the return trip) is (x - 10) knots.

5. Similar to part 3: we will multiply speed by time to determine the distance from the island. From part 4, we have determined that the speed of the tall ship to be used in returning is (x - 10) knots. Meanwhile, the given in the problem says that the tall ship will take 10 hours to make the trip. Therefore the distance will be equal to d = 10(x - 10) = 10x - 100 nautical miles.

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5x = 10x - 100

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8. We determined in part 4 that the speed of the second boat (in our case, the tall ship) is (x - 10) knots. Since we have calculated in part 7 that the steamboat travels at x = 20 knots, then the speed of the tall ship is (x - 10) = 20 - 10 = 10 knots.</span>

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2 years ago

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2 years ago

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Answer:

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