Answer:
7.5 feet per second
Step-by-step explanation:
Answer:
gradient is equal to 0.7
Step-by-step explanation:
line passes on (-2,0) and (0,1.4)
gradient =(y2-y1)/(x2-x1)
=(1.4-0)/-(0--2)
=1.4/2
=1.4/2×10/10
=14/20
=7/10
=0.7
Answer:
4 and 6
Step-by-step explanation:
Answer:
f(x) = x*3/4 + 42.5
Step-by-step explanation:
The original difference between the pair is 70 - 30 = 40
The new difference between the pair is 95 - 65 = 30
Since the differences are not the same, Mrs Bailey must first perform a (slope) multiplication by a factor of 30/40 or 3/4
Then 30 * 3/4 = 22.5
Then she can shift the scores up by 65 - 22.5 = 42.5 in order to get the range from 65 to 95
Therefore, f(x) = x*3/4 + 42.5. We can test that
f(30) = 30*3/4 + 42.5 = 65
f(70) = 70*3/4 + 42.5 = 95
