Answer: 40.
Step-by-step explanation:
Given : The sweater department ran a sale last week and sold 95% of the sweaters that were on sale.
95% can be written as 0.95 [ by dividing 100 ]
Also, the number of sweaters sold = 38
Let x be the number of sweaters were on sale.
Then , we have the following equation :_
Hence, 40 sweaters were on sale.
Solution:
A perfect square is a number that can be expressed as the product of an integer by itself or as the second exponent of an integer.
Hence, the number that can be expressed as a product of an integer by itself is;
Therefore, the perfect square is 81.
OPTION B is correct.
<u>Answer: </u>
In 3 hour 15 minutes Dennis will walk 9.2072 miles.
<u>Solution: </u>
It is given that Dennis can walk 2.833 miles each hour. We have to find how far will he walk in 3 hours 15 minutes.
We first convert 15 minutes in hour. To convert 15 minutes in hour we divide 15 by 60.
Therefore 3 hours 15 minutes can be written as
Now,
In 1 hour dennis can walk 2.833 miles
Thus in 3 hour 15 minutes Dennis will walk 9.2072 miles.