Answer:
Step-by-step explanation:
For example,
<u>Solution: Finding a unit rate</u>
If we divide 150 by 20, we get the unit rate for the ratio, 150 minutes for every 20 miles.
150÷20=7.5
So the runner is running 7.5 minutes per mile. We can multiply this unit rate by the number of miles:
7.5 minutes mile × 6 miles = 45 minutes
Thus it will take her 45 minutes to run 6 miles at this pace.
If it takes her 45 minutes to run 6 miles, it will take her 45÷3=15 minutes to run 6÷3=2 miles at the same pace.
If it takes her 15 minutes to run 2 miles, it will take her 4×15=60 minutes to run 4×2=8 miles at the same pace. Since 60 minutes is 1 hour, she is running at a speed of 8 miles per hour.
We found her pace in minutes per miles in part (a).
Answer:
intersect at (10,-6)
Step-by-step explanation:
Answer:
(0,-2)
Step-by-step explanation:
4x4=16
5x5=25
The area is between perfect squares 16 and 25. Then the side length is between 4 cm and 5 cm
−10+1≤3x≤1+1
2 Simplify.
−9≤3x≤2
3 Divide the whole equation by 3.
9/3 ≤x≤ 2/3
4 Simplify.
−3≤x≤ 2/3
-3<x<4
