Answer: He still has to mow 45 lawns, or 75% of the lawns before he is finished.
Answer:
Step-by-step explanation:
y = 2x + 8
She know 8 songs. 8 will be the y-intercept and each month she learns 2 songs which will be the slope of the function.
The change in temperature is basically the "distance" between the two values. And the distance between two numbers is given by their difference.
In fact, if you subtract two identical number, you get something like
which makes sense in our metaphor, since it means that the distance between 13 and 13 is zero. On the other hand, if you pick something like
it makes sense again, since we're saying that 26 and 5 are 21 units apart.
So, the change in temperature is the difference between the temperature:
This means that the two values are 12 units apart, and the minus sign means that the temperature has decreased.
So, we can say that the change in temperature is a decrease of 12 degrees.