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3 years ago

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The number 475 is a three digit number that uses only the three digits 4,5,7. How many three-digit numbers can be formed using t

hese three digits of repeated digits are allowed?

1 answer:

erastovalidia [21]3 years ago

7 0

Answer:

I think 274

Step-by-step explanation:

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Google it and you will see the answer

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Answer:

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Step-by-step explanation:

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2 years ago

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three families are traveling the same route across country. the first family stops every 240 kilometers. the second family stops

kogti [31]

Answer:

<u>The three families will stop at the same place at 1,200 kilometers.</u>

Step-by-step explanation:

1. Let's check all the information given to answer the question:

Family A or 1 stops every 240 kilometers

Family B or 2 stops every 200 kilometers

Family C or 3 stops every 300 kilometers

2. After how many kilometers will they stop at the same place?

Family A or 1 will stop at 240, 480, 720, 960 and 1,200 kilometers.

Family B or 2 will stop at 200, 400, 600, 800. 1,000 and 1,200 kilometers.

Family C or 3 will stop at 300, 600, 900. and 1,200 kilometers.

<u>As we can check the first common stop will be at 1,200 kilometers.</u>

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3 years ago

The design of a microchip has the scale 40:1. The length of the design is 18cm, find the actual length of the micro chip?

zimovet [89]

Answer:

0.45 cm

Step-by-step explanation:

Actual length of the micro chip

$= \frac{1}{40} \times 18 \\ \\ =0.45 \: cm$

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3 years ago