Answer:
-22k - 67m
Step-by-step explanation:
You have to use the Distributive property:
8(k + m) - 15 (2k + 5m)
8k + 8m - 30k - 75m
Now simplify:
8k - 30k + 8m - 75m
-22k - 67m
Be careful with positives and negatives!
Hope this help!
Answer: f(-2) should be 6
Step-by-step explanation:
The pattern would be +3 -1
1+3=4
4-1=3
3+3=6
6-1=5
Mean and median both try to measure the central tendency in a data set. The mean is commonly used but sometimes the median is preferred.
A. We must consider that Marisa is walking a straight trail
so that the time required to cover a distance is persistent or constant.
B. The slope of the line is: y = m x + b
Where in this problem, y is the distance, m is the slope or
the time it takes for each block, x is the time, and b would be the y intercept
or the initial location of Marisa.
C. The slope m can be calculated using the formula:
m = (y2 – y1) / (x2 – x1)
m = (8 – 12) / (6 – 0)
m = -0.67
The negative sign is the space between Marisa and Sanjay’s
home is declining by time. It further means that there is a cut in 0.67 blocks
per minute.
D. y = - 0.67 x + b
The starting point of Marisa is at 12 blocks away from
Sanjay’s home, therefore let b be 12.
Finding for time when distance is y = 0:
0 = -0.67 x + 12
x = 17.9 minutes
Therefore it takes approximately 17.9 minutes to go to Sanjay’s
home.
