Answer: 1 hour 15 minutes
Step-by-step explanation:
From the question, we are informed that Laura and Alicia both exercise 5 days a week and that Laura exercises for 30 minutes each day. For the 5 days, she'll exercise for:
= 5 × 30 minutes
= 150 minutes
= 2 hours 30 minutes
Alicia exercises for 45 minutes each day. Fir the 5 days, she'll exercise for:
= 5 × 45 minutes
= 225 minutes
= 3 hours 45 minutes
We then calculate the difference in their exercise per week which will be:
= 3 hours 45 minutes - 2 hours 30 minutes
= 1 hour 15 minutes
Answer:
C
Step-by-step explanation:
Since the number outside of the parentheses is -5, the negative factor means that the line is reflected across the x-axis.
Let the full marks = x
Then, it would be: x*40/100 = 60
x = 6000/40
x = 150
Full marks will be 150
The correct answer is C. 78
Answer:
Row 2
Step-by-step explanation:
To find the mean, we add all the numbers and divide by the number of numbers
Row 1:
(6+5+3+0+4)/5 = 18/5 = 3.6
Row 2:
(4+5+3+5+6)/5 = 23/5 = 4.6
Row 3:
(7+1+4+5+3)/5 = 20/5 = 4.0
Row 4:
(4+2+5+6+3)/5 = 20/5 = 4.0
The greatest mean , or the largest mean is 4.6 or Row 2
