Answer: 10
Step-by-step explanation:
Given : The American Lung Association stated that approximately 1 out of every 20 deaths in the US last year was from lung cancer.
Then, the proportion of death will be :_
Now, If there are 200 students in a class, then the expected number of persons die from lung cancer :-
Hence, we expect the number of persons die from lung cancer =10
Answer:
Part A:
x+y= 95
x = y+25
Part B : 35 minutes
Part C : No
Step-by-step explanation:
Eric plays basketball and volleyball for a total of 95 minutes every day
x+y= 95
Where:
x =the number of minutes Eric plays basketball
y= the number of minutes he plays volleyball
He plays basketball for 25 minutes longer than he plays volleyball.
x = y+25
System:
x+y= 95
x = y+25
Replacing x=y+25 on the first equation:
(y+25) + y =95
Solving for Y
y+25+y =95
25+2y=95
2y=95-25
2y=70
y = 70/2
y = 35 minutes
Part C : No
if x = 35
x+y= 95
35+y =95
y= 95-35
y = 60 minutes
Replacing y=60 on the other equation:
x = y+25
35 = 60+25
35 ≠85
Answer:
You can insert any number instead of X and y because they are Variables.
After a certain amount of time whoever asked the question gets to pick who gave them the brainliest answer, so its up to whoever asked the question whether they think you deserve it!
You haven't shared the list of expressions from which you are to choose an answer.
However: you can perform this estimation yourself as follows:
Round off both -21.87 and 4.79. -21.87 goes to -22 and 4.79 to 5. Then
a good estimate of -21.87 divided by 4.79 would be -22/5, or -4.4.
