Answer:
5 months
Step-by-step explanation:
Let the number of months be "x"
Lets find equation for both Harry's and Fiona's scheme.
<u>Harry:</u>
80 fixed cost
19 per month
So that would be 80 + 19x
<u>Fiona:</u>
no fixed cost, only 35 per month
So that would be 35x
Now we equate both since we want cost to be same and find x, number of months at which this will occurs. Shown below:
Thus, after 5 months, cost will be same.
Answer:
x=3,y=3
Step-by-step explanation:
Answer:
3. positive correlation but not causal relationship
Step-by-step explanation:
A positive correlation is when one factor increases, the other factor increases as well.
A negative correlation is when one factor increases, the other factor decreases.
A causal relationship is when one factor <em>causes </em>the other factor change in a certain way (i.e. increase or decrease).
More people buy ice cream as the day becomes hotter and sunnier. This also applies to people choosing to wear sunglasses. Therefore, there is a positive correlation between the two (because both increase). However, this is not a causal relationship because the cause of both is the hotter and sunnier day.
I hope this helps! If you have any question, feel free to as. :)
The contrapositive switches the hypothesis and the conclusion and negates both in this form:
Statement: If A, then B
Contrapositive: If not B, then not A.
In this case, the statement is:
<span> "If the lights are off, there is no one inside."
Contrapositive:
If there is someone inside, the lights are on. </span>
Answer:
The student did not divide 5 into 25 but subtracted 25 from both sides. It looks like the student then moved the -5 over to the other side somehow.
