Step-by-step explanation:
1. f+15<6
= f<6-15
f < -9
2. f+12 >16
f >16-12
f > 4
Answer:
1.no 2.no 3.no 4.no 5.yes 6.yes
7.yes 8.yes 9.no 10.yes 11. yes 12.yes
Step-by-step explanation:
hope that helps
Trick question. There is not one. Due to the fact that 3 is a factor of 15 and if you factor it you will get five which is a third of 15.
Answer: First half was 24 minutes
Step-by-step explanation:
Let the time taken to finish the second half be y.
Since the student used 2/3 of the second half time to finish the first half, first half = 2/3 × y = 2y/3
The entire exam is an hour which equals 60 minutes
First half + Second half = 60minutes
Note that first half is denoted as 2y/3 and second half is denoted by y.
2y/3 + y = 60
5y/3 = 60
Cross multiply
5y = 60 × 3
5y = 180
y = 180/5
y = 36
Second half took 36 minutes
Since first half is 2y/3, it will be:
(2×36) / 3
= 72/3
= 24minutes
First half took 24 minutes.
