Answer:
4 hours
Step-by-step explanation:
For three visits, the electrician earned $40 × 3 = $120 in "per-visit" charges. For working x hours, he earned 20x in "per-hour" charges. The total of these came to 50x:
120 +20x = 50x
120 = 30x . . . . . . . . subtract 20x
4 = x . . . . . . . . . . . . . divide by 30
The electrician worked 4 hours that day.
Answer: 2: a 3: b 4:b
Step-by-step explanation:
Ok so If I am understanding the question correctly, you will multiply 5 x 6 = 30 so there are 30 Bulbs. So all except 3 were planted. So then you will subtract 3 from 30 like this 30-3=27. That is your answer. Just take a deep breath Math looks a lot harder than it really is.
Do 500 divied by 4 and its 125 so 125 people have dogs.
