Answer:

Step-by-step explanation:
we know that
30 and one-third miles is equal to

one-third of an hour is equal to

Applying proportion

Convert to mixed number

Answer:
first 2 , second 50, third 8
Step-by-step explanation:
Vertex form: y = a(x - h)² + k
h = 2
k = -1
y = 0
x = 5
0 = a(5 - 2)² - 1
0 = 9a - 1
a = 1/9
Answer:
In seven minutes she can do 91 push ups
Step-by-step explanation:
26*3=78
78+13=91
Answer:
53
Step-by-step explanation:
Total amount = Given to his brother + Amount left
20 + 33 = 53