The experienced window washer can wash all the windows in Mike’s house in 2 hours, which implies that in 1 hour he completes 1/2 of the job.
By the same logic, the new trainee completes 1/7 of the job in one hour.
If they work together, they complete
of the job in one hour, meaning that they complete the job in 14/9 of a hour.
Answer:
19.4 dollars
Step-by-step explanation:
3.45= 3/4 lb times 5.625
7.5 lb
3.45 times 5.625=19.4
2) 1.2 x 10,000 - 1.5 x 1,000 - 2.2 x 100 = 10,280
3) 7.3 x 100,000 + 1.6 x 1,000,000 + 4.7 x
100,000 = 2,800,000
4) 8.2 x 10,000 - 2.4 x 10,000 - 1.5 x 1,000 = 56,500
5) 2.4 x 1,000 + 3.4 x 10,000 + 1.5 x 1,000 = 37,900
6) 6.2 x 10,000 - 3.4 x 100 - 7.5 x 1,000 = 54,160
7) 8.3 x 100,000 + 1.6 x 10,000,000 + 6.7 x 10,000 = 16,897,000
8) 8.0 x 1,000 - 0.8 x 1,000 - 1.2 x 100 = 7,080
Answer:
1, 4, and 5
Step-by-step explanation:
1 is correct because 5*5=25*4=100
2 is incorrect because 5*5=25*5=125
3 is incorrect because 5*4=20*4=80
4 is correct because 5*20=100*1=100
5 is correct because 5*2=10*10=100
6 is incorrect because 5*10=50*10=500
Answer:
$80
Step-by-step explanation:
The formula for p is ...
p = I/(rt)
Filling in the given values, we get ...
p = $20/(0.05·5) = $80
The amount that will generate the desired interest is $80.
