Answer:
d=6
Step-by-step explanation:
d+7=13
-7 -7
-----------
d=6
25 in 1/2minute
10 1/2 minutes in 5 minutes
25*10=250
Hope this helps :)
Answer:
13n
Step-by-step explanation:
Add them together. They are like terms.
So to start off, first combine like terms, so all the a^2 with the a^2’s, the a’s with the a’s, and the normal numbers.
Add the -5a^2, the -a^2, and the -18a^2 together.
-24a^2-12a-6a-4-16+5a
Now add the -12a, the -6a, and the 5a together.
-24a^2-13a-4-16
Lastly add the -4 and -16 together.
-24a^2-13a-20
^^That is your answer^^
Hope this helps!
Step-by-step explanation:
Speed = Distance / Time
given distance = 6km
time = 30 minutes = 30/60 hr = 1/2hr
speed =
