Answer:
15-9 will be greater
Step-by-step explanation:
Caroline wants to compare the expressions 15-9 and 9 (-15)
For us to know the result that is greater, we will have to check if the first value is less than or greater than the other. For example
If for a-b
a-b is greater if a>b
a-b is lesser if a<b
Given 15 - 9
Since 15 > 9, this means that 15-9 will be greater compare to 9-15
Answer: 12
Step-by-step explanation:
(55-52) + ( 3 +6)
3 + 9
12
Step-by-step explanation:
In 1 second Fran cycles 5.3 m.
So we need to work out how many seconds is in 5 minutes.
1 minute = 60 seconds
5 minutes = 60*5 = 300 seconds
So Fran cycles at a speed of 5.3 m/s in 300 seconds.
1 second = 5.3m
300 seconds = 5.3*300 = 1590m
Hope this helps!
Looking at the graph closely we can see that the heart rate increases from 0 to 6 min then became steady from 6 to 25 min then finally decreases from 25 to 30 min. Therefore the correct answer is:
“The heart rate increases for 6 minutes, remains constant for 19 minutes, and then gradually decreases for 5 minutes.”
In real life cardiac exercises, we can interpret that the period from 0 to 6 min is the period where the person is still warming up thus leading to an increase in heart rate. At 6 min, the person is fully warmed up hence reaching a stable heart rate. Then at 25 min, the person starts cooling down which means that the exercise is ending soon.
