Answer:
17
Step-by-step explanation:
since it is in the middle you can just divide by 3 since one will be greater and one will be less so 51/3=17
Answer:
35 [$]
Step-by-step explanation:
1) if Peter's sum is p and Jacky's is j, then the ratio 5:2 in the condition can be written j/p=5/2;
2) the phrase 'after Jacky gave 15 dolls to Peter, they have an equal number of dolls' can be written as j-15=p;
3) using the two above it is possible to make up the system of two equations:

4) finally, the have together 10+25=35 doll-s.
-5 to 0 is 5 degrees
0 to 27 is 27 degrees
Total change = 5 + 27 = 32 degrees.
Answer:
17
Step-by-step explanation:
Simplifyiing
the greatest common factor is 3 so
3x - 9y + 12 = 3(x - 3y + 4)