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zubka84 [21]
3 years ago
15

What is 30,000 expressed in scientific notation?

Mathematics
2 answers:
Assoli18 [71]3 years ago
7 0

First count how many zeros 30,000 has it has four. So you need to multiply it by something that has four digits. So B. 3 x 1000. Or expressed in scientific notation.

3 × 10^{4}

OlgaM077 [116]3 years ago
6 0

The answer is b. It is the only choice that equals the right answer. You could also write this as 3 * 10^4, which is equivalent to b.

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Two buses leave Houston at the same time and travel in opposite directions. One bus averages 55 mi/h and the other bus averages
Veronika [31]
Well you can just keep adding 55 =1hr until you get to 400 the same with 45
6 0
3 years ago
The cost of 90 kg of rice is 4500. what is the cost of 2 quintal of rice?​
gayaneshka [121]

Answer:

The cost of 2 quintal of rice is $10,000.

Step-by-step explanation:

To determine the cost of 2 quintals of rice, knowing that 90 kilos of said product is worth $ 4,500, it is first necessary to establish the equivalence between quintals and kilograms. In this regard, a quintal is equivalent to 100 kilograms, so 2 quintals are equivalent to 200 kilos.

Now, to determine the cost per kilogram of rice, the following calculation is required:

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50 = X

Therefore, 1 kilogram of rice costs $ 50. Thus, since 200 x 50 equals 10,000, 2 quintals of rice will cost $ 10,000.

5 0
3 years ago
Kirsten has to walk 2 3/4km to school. How far has she walked when she halfway? Give your answer in metres.
evablogger [386]

Answer:

375 m

Step-by-step explanation:

\frac{3}{4}  \times 1000 = 750

From halfway

\frac{750}{2}  = 375

Follow me and text me if you need anything in math.

6 0
3 years ago
Plz help<br> 15 + (-8) =
Effectus [21]

Answer:

7

Step-by-step explanation:

15 + (-8)

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The answer would be 7 because you are only taking 15 plus negative 8 which would technically be the same as taking 15 minus 8, which would be 7.

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6 0
3 years ago
Can someone help me I’m confused#5
MrRissso [65]

Answer:

Multiply

Step-by-step explanation:

4 0
3 years ago
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