Combine like terms: -4x+3-7x-8
1 answer:
You might be interested in
*see attachment below showing the dot plot and box plot created by Tia
Answer:
Dot plot
Step-by-step explanation:
In a dot plot, the temperature of a day is represented by 1 dot. There are 30 dots on the box plot shown in the attachment that was made by Tia.
This dot plot display makes it easier to find how many days had a temperature that is higher than 15°.
Thus, from the dot plot, we have:
2 dots representing 2 days having a temperature of 16°C each
2 days also have daily temperature of 17°C
2 days have temperature of 18°C as well, and
1 day has temperature of 19° C.
Therefore, the number of days that had a temperature above 15°C is 7 days.
The diagonal WY bisects the diagonal XV at point D, which means that XV is divided into two equal line segments XD and XV.
Replace the equation above with the given expressions for both line segments:
XD= 2x-6
XV= 3x-6