Ralph is an electrictian.he charges an initial fee of $32 plus $33 per hour. if ralph earned $189 on a job,how long did the job take ?

5 hours

Step-by-step explanation:

189-32=157

157/33 is about 4.76

4.76 rounded is 5 so the job took 5 hours

The place value system is a system where the value of a digit depends on its place, or position, in the number. Each place has a value of 10 times the place to its right.

Dividing a number by ten causes the number to loose one place and then take the next place value to the right.

For example, the number 12,380 has the place value of 1 'ten thousands', 2 'thousands', 3 'hundreds', 8 'tens' and 0 'ones'.

12,380 / 10 = 1,238

where, the number 1,238 has the place value of 1 'thousands', 2 'hundreds', 3 'tens' and 8 'ones'.