Do you have any more information there really is no other way to solve it with out more information
Answer:
The last term is 33.
Step-by-step explanation:
Sn = (n/2)(a1 + L) where a1 = first term and L = the last.
So:
-480 = (20/2) ( -81 + L)
-480 = 10( L - 81)
L- 81 = -480 / 10 = -48
L = -48 + 81
L = 33.
X=21 and the mesure of one would be 120 to check if its correct multiply 5 by 21 then add it to 15 and that would be the answer for what 1 is you can also check of its 21 by multiplying 3 by 21 and subtracting 3 then adding both to get 180 which is the normal measurements of the line. hope this helps somehow
Answer:
21 birds and 7 dogs
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Step-by-step explanation:
Represent Birds with B and Dogs with D
----- Total Animals
A bird has 2 legs and a dog has 4, so:
---- Legs
Required
Solve for D and B
Make D the subject in the first equation
Substitute 28 - B for D in the second
Collect Like Terms
Solve for B
Recall that:
<em>Hence, there are 21 birds and 7 dogs</em>
Answer:
-21
Step-by-step explanation:
Each of those lines is -3
If you look at the -10, it goes down 2 lines and goes to -16 meaning that if it only went down one line it would only go to -13
Showing that each line is worth -3
It goes down 2 lines from -16 (-6)
so if you go down 6 from -16 that would get you to -21
