Answer:
When the difference of two numbers is zero, it means that the two numbers are the same.
Therefore, any irrational number substracted by itself will be equal to zero.
Here some examples:
- √8 - √8 = 0
- √1.6 - √1.6 = 0
- π - π = 0
Answer:
205 minutes
Step-by-step explanation:
Step one:
given data
We are told that Luca's goal is to practice violin for 300 minutes in a week
He has practiced 45 minutes and 50 minutes for Saturday and Sunday already
that is in all, 45+50= 95minutes
Required
The remaining minutes of practice
Step two:
the deficit in practice is
300-95= 205 minutes
That the foreign exchange rate between the US dollar and the Danish krone is 1:2.50 means that USD 1 = Dk 2.5
From that you create the conversion factor => 1 = Dk 2.5 / USD 1
Now use the conversion factor to convert USD 5 to Dk => USD 5 = USD 5 * Dk 2.5 / USD = 12.5 Dk.
<span>Answer: 12.5 Danish krone</span>
Step-by-step explanation:
W = (2L -57)
P = 2×(L+W)
198 = 2× (L + 2L -57)
198 = 2× (3L - 57)
3L-57 = 198/2
3L-57 = 99
3L = 99+57
3L = 156
L = 156/3 = 52
W = 2(52) -57 = 104-57 = 47
so, the length = 52 ft
and the width = 47 ft