a painter can finish a house in 5 hours. Her assistant takes 7 hours to finish the same job. How long would it take for them to
complete the job if they were working together?
1 answer:
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Answer:
The instantaneous velocity after eight seconds is 9 m/s
Step-by-step explanation:
Given as :
The ball shot upward with velocity of 15 m/s
The height of the ball after t sec is given as h(t) =
Now, The instantaneous velocity after 8 sec =
Or, The instantaneous velocity =
or, The instantaneous velocity =
Now at t = 8 sec
The instantaneous velocity = 5 + 4 = 9 m/s
Hence The instantaneous velocity of ball at t = 8 sec , is 9 m/s Answer
Answer:
The answer is $3000.
Step-by-step explanation:
The men's clothing buyer had a group of 50 jackets priced at $250 each.
Total price of jackets = dollars
The buyer reduced the price of the jackets in that group to $200 and 40 jackets were sold.
So, the price for selling 40 jackets is = dollars
Remaining jackets =
These were sold at $150 each, totaling to = dollars
So, overall money earned by reducing prices both time = dollars
And the markdown in dollars = (original price before reducing) minus (educed total price)
= dollars
So, the answer is $3000.