You could do 1/2 times 5/4 which equals to 5/8
Answer:
Her original speed is 54 mi/h
Step-by-step explanation:
Here, we want to calculate the original speed
Let this be x mi/h
Mathematically;
distance = speed * time
So she drove at a speed of x mi/h for 2 hours, then (x-10) mi/h for the remaining 1 hour for a total 152 mi journey
Mathematically, we can add up the journey parts as
x(2) + (x-10)1 = 152
2x + x - 10 = 152
3x = 152 + 10
3x = 162
x = 162/3
x = 54 mi/h
Answer:
X= 1/2 or 0.5
Step-by-step explanation:
2x^-3 = 16
x^-3 = 8
1/x^3 = 8
1 = 8x^3
1/8 = x^3
Cube root of 8 is 2
1/2 = x
The last step you need to do is 5.25+0.03, because you took away 0.03 more than what the question asked so you need to add the 0.03 back, which gets you the final result of 5.28.