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vaieri [72.5K]
3 years ago
6

6. The population of a town is 680 000 correct to the nearest 10 000. Write down

Mathematics
1 answer:
serg [7]3 years ago
6 0

Answer:

a) 675 000

b) 685 000

Step-by-step explanation:

The population of a town is 680 000 correct to the nearest 10 000.

a) To find it lower bound, we level of accuracy by 2 and then subtract from 680 000

The lower bound is:

680 000-5000=675,000

Therefore the least possible population of the town is 675 000

b) We repeat the same process to find the upper bound

680 000+5000=685,000

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1E. The number 2A5A0A2 is divisible by 99. What is the digit A?
kirza4 [7]

Answer: A = 3

Step-by-step explanation:

The digit is 3. If A is 3, the number

2A5A0A2 becomes 2353032. We then divide by 99 and this will be:

= 2353032/99

= 23768

If we use 1, we'll have 2151012. Dividing by 99 gives:

= 2151012 / 99

= 21727.39

If we use 2, we'll have 2252022. Dividing by 99 gives:

= 2252022 / 99

= 22747.69

If we use 4, we will have 2454042. Dividing by 99 gives:

= 2454042 / 99

= 24788.30

If we use 5, we will have 2555052. Dividing by 99 gives:

= 2555052 / 99

= 25808.61

If we use 6, we will have 2656062. Dividing by 99 gives:

= 2656062 / 99

= 26828.91

If we use 7, we will have 2757072. Dividing by 99 gives:

= 2757072 / 99

= 27849.21

If we use 8, we will have 2858082. Dividing by 99 gives:

= 2858082 / 99

= 28869.52

If we use 9, we will have 2959092. Dividing by 99 gives:

= 2959092 / 99

= 29889.82

If we use 0, we will have 2050002. Dividing by 99 gives:

= 2050002 / 99

= 20707.09

Therefore, A is 3 as it gives 2353032 which divides 99 successfully without remainder.

5 0
3 years ago
2.5 is what percent of 4?
vladimir1956 [14]

Answer:

0.4%

Step-by-step explanation:

is the wright answer

8 0
3 years ago
Read 2 more answers
Are the two triangles in the figure Similar? Justify the answer.what is the distance d across the lake?
Delicious77 [7]

Two triangles are Similar if the only difference is size (and possibly the need to turn or flip one around). Therefore would be answer B.

Find the ratio

\begin{gathered} \frac{80}{30}=\frac{d}{180} \\ d=180\cdot\frac{80}{30} \\ d=480\text{ ft} \end{gathered}

The distance would be 480 ft

8 0
1 year ago
Rewrite in simplest terms: -5a – 86-8a + 1)
Mandarinka [93]

Answer:

- 13a - 85

Step-by-step explanation:

Given

- 5a - 86 - 8a + 1 ← collect like terms

= (- 5a - 8a ) + (- 86 + 1)

= - 13a + (- 85)

= - 13a - 85

5 0
3 years ago
Read 2 more answers
Circle the correct answer choice.
Rudiy27

Answer: D) 0.392

Step-by-step explanation:

0.300

0.090

0.002

__________

0.392

6 0
3 years ago
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