Answer:
Step-by-step explanation:
This question is about the benefits of estimation.
1300/13 is easy and results in 100.
1287/13 can be approximated by 1300/13: 1287/13 ≈ 100.
Actually, 1287 = 1300 - 13 = 13(99); just subtract 1 from 100.
So: 1287/13 = 1300 - 13 = 1287. A nice bit of mental math!
Answer:
Step-by-step explanation:
times the number so 18 times 30
Answer:
Slope is undefined and y int does not exist
Step-by-step explanation:
x=10 means it will be a vertical line where x= 10 so the slope is undefined and since it is perfectly vertical, it will never touch the y axis.
Answer:
11
Step-by-step explanation:
proportions
Answer:
It should be 42.25 instead
Step-by-step explanation: