Answer:
Eric's expression is :

and Andrea's is :

In Eric's expression, 20 represents the initial amount of substance with which he has started the experiment.
is the amount of substance left after each time period (in this case, each week).The variable w in this case represents the number of weeks.
Andrea's expression can be written as :

The one outside of parentheses represents the initial amount of the substance. The one inside of parentheses represents 100% of the original amount of the substance. 0.5 represents the 50% of the substance that is lost each time period. The variable w in this case represents the number of weeks.
Answer:
x=2 f(x)=5-x
o≤x≤3 f(x)=x
2<x<3 f(x)=1
3<x≤5 f(x)=5-x
Step-by-step explanation:
Basically you get the volume first:
10 times 10 times 50
Which is 5,000
And we're given the cans volume already:
9.42
So what we do now is divided the area by the cans for our answer:
5,000/9.42
Which is 530.785563
So Sean can stack 530 cans of beans in his shelf.
(when rounding is is 531 cans)
Answer:
$1400x + $150
Step-by-step explanation:
Let the total cost of rent used for a month be $1400 plus a $150 application fee.
This means that;
Total cost (1 month) = $1400(1) + $150 = $1550
TO calculate the cost for x months, we will simply multiply x with the cost of rent for 1 month as shown.
The cost of rent for x month = 1400x * $150
The cost of rent for x month = $1400x + $150 (application fee are paid only once)