Answer:
15 dots
Step-by-step explanation:
formula :: 1/2 x n ( n +1 )
fig 1 ; 1 /2 x 1 ( 1+1 ) = 1 dot
fig 2 :; 1/2 x 2 ( 2+1 ) = 3 dots
......
fig 5 :: 1/2 x 5 ( 5+1 ) = 15 dots
Answer:
The student played basketball for 40 minutes.
Step-by-step explanation:
Given that one week a student exercised for 2 hours at school and for 2/3 of an hour at home, it can be stated that the student exercised for 2 hours and 40 minutes (since 60 x 2/3 is equal to 40 ). Thus, in total the boy exercised for 160 minutes (2 x 60 + 40).
Now, since he spent 1/4 of that time playing basketball, the time spent doing this sport is determined through the following calculation:
160/4 = X
40 = X
Thus, the student played basketball for 40 minutes.
Yo subtract 5- 2.75 and you get 2.25. 2.25 divided by .375 is 6 so 6 deli sandwiches were made
3.13 the answer is y=-x-2 (d)
3.14 the answer is 8 (c)
3.15 the answer is 9 (d)
3.16 the answer is 0 (a)
3.17 all the answers are correct with the exception of y=x/0 (second one)
3.18 I think all of them
Median is 19
IQR is 12
Range is 22
See photo below for explanation