Answer:
they are no instructions so no answers either.
Step-by-step explanation:
am sorry I can't help you, the question might not have been complete. please do contact me when it's.
Given:
Cost of each shirt = $14.95
Cost of a tie = $12
Discount on Sale = 15% off
Manny buys three shirts and a tie.
To find:
The Manny's total cost.
Solution:
We have,
Cost of 1 shirt = $14.95
Cost of 3 shirt = 3 × $14.95
= $44.85
Cost of a tie = $12
Total cost before discount = Cost of 3 shirt + Cost of a tie
= $44.85 + $12
= $56.85
Everything in the store is on sale for 15% off. So,
Therefore, the Manny's total cost is $48.3225.
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Irina:
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Irina takes 7 hours to paint the room.
In 1 hour, Irina can paint 1/7 of the room.
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Paulo:
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Paulo takes 6 hours to paint the room.
In 1 hour, Paulo can paint 1/6 of the room.
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Both paint together:
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In one hour they can paint (1/7 + 1/6) of the room.
1/7 + 1/6 = 13/42
So, it takes 13/42 of the room takes 1 hour.
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Find the number of hours
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13/42 of the room = 1 hour
Whole room = 1 ÷ 13/42
Whole room = 1 x 42/13
Whole room = 3.23 hours
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Answer: They need 3.23 hours to paint the room.
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70 miles in 3 hours = 70/3 ≈ 23.33 mph
If 1 mile = 1609 m the 23.33 miles≈ 37543.33 meter per hour.
Divide by 60 to change to meters per minute and again by 60 to change meters per minute to meters per second - Shortcut is to divide by 60 x 60 or 3600
<u>37543.33 </u>≈ 10.428 meters per second. Answer a. is correct<u>
</u>3600
