Answer: a)9 3/4 hours
B)1 11/12 hour
Step-by-step explanation:
Piano: 3 1/2 hour; 3hours 30min
Soccer: 6 1/4 hour; 6hours and 15 min
Telephone: 4 1/3 hour; 4 hours and 20 min.
Remember that in an hour there is 60 min, and 1/2 of an hour is 30 (min), 1/4 is 15(min) and 1/3 is 20(min).
a) 3hours and 30min + 6hours and 15 min
That gives us 9 hours and 45 min, which is 9 3/4 hours.
B) 6hours and 15 min — 4 hours and 20 min
That gives us 1 hour and 55 min, which is 1 11/12 hours.
I hope this helps you!
Answer: x=-9/2
Alternative Form: x= -4 1/2, x= -4.5
Answer:
y=7, x=8
Step-by-step explanation:
<u><em>Answer:</em></u>
Nelson burned the most calories per hour
<u><em>Explanation:</em></u>
To solve this question, we will get the amount calories burned by each in one hour and then compare the two values
To do this, we will divide the total amount of calories burned by the total time
<u>1- For Sabra:</u>
We are given that she burnt 845 calories in
(which is equivalent to 3.25) hours
<u>Therefore:</u>
Calories burnt in an hour =
calories/hour
<u>2- For Nelson:</u>
We are given that he burnt 1435 calories in
(which is equivalent to 4.875) hours
<u>Therefore:</u>
Calories burnt in an hour =
calories/hour
<u>3- Comparing the two values:</u>
From the above calculations, <u>we can deduce that</u> Nelson burned the most calories per hour
Hope this helps :)