First we write equation for new freezer where x will be number of days operated and than equation for second freezer where x will have same function and we set those 2 equations to be equal. after that all we need to do is to solve for x
500 + 0.2*x = 20 + 0.5*x
480 = 0.3*x
x = 480/0.3 = 1600
The answer is 1600 days
Answer : 1 : sales tax , 2 : 6 percent, 3 : returns (i only know those so hope it helps )
Answer:
<em>15 students visited both museums.</em>
Step-by-step explanation:
<u>Operations With Sets</u>
Sets are a collection of elements. Some sets have elements in common with other sets. These elements are said to be in their intersection. If we know the number of elements in the set A and in the set B, and also the total number of elements in both sets, we can say
where is the total number of elements, N(A) and N(B) are the number of elements in A and B respectively, and is the number of elements in their intersection. If we wanted to know that last number, then we isolate it
Let A= Students who visited the museum of natural history
B=Students who visited the natural air and space museum
We know
Answer: 15 students visited both museums.
Note: We are assuming no students didn't visit at least one museum
Answer:im sorry thats so cofsiung
Step-by-step explanation:ok i think to ask yor perants dont worry if ya dont know or they dont tell yor teacher and say can we please go over it or somethin okay
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The answer is C) -6
3-(-2)^2-5=-6