Using the number 678,923 867,239 make a comparison between the value of 3 in the first number and the value of the 3 in the second number

The place value of 3 in fourth number is ten times that of place value of 3 in 2nd number.

Step-by-step explanation:

We are given with the numbers 678,923 867,239.

The place value 3 in second number = 3 as 3 is placed at ones place

The place value of 3 in fourth number is 3 x 10 = 30 as it is places on tenth place.

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

she will sew have sewn five dresses   and be 1/3 done with the sixth one in an hour.

step-by-step explanation:

3/4 of an hour=45 mins

lucy makes 1 dress per 11.25 minutes

45 mins+11.25 mins=56.25 mins

60 mins- 56.25 mins=3.75 mins

3.75 mins is 1/3 of of 11.25 mins

therefore she the other 1/3 would be part of the hour and she will have sewn 5 dresses and begun the sixth.

contact me if you have any questions you are welcome.