math questions~don't translate~i jst wanna the answer./

math questions~don't translate~i jst wanna the answer./
slove.
6. Moro has 95 cents in nickles and dimes. He has 13 coins. How many of each does he have?
7. There are 7 more boys than girls in a class of 23. How amny of each are there/
8. Matthewe lives 7 km closer to the school than Berthe. They live a total of 31 km from the school. How far does eachj live from the school?
9. On the target , the sum of the point for A and B is 7. The sum for B and C is 12. The products of the points for A and C is 24. Find the points for A, B and C.
10. Jose has $51 in $2 and $ bills. he has 15 bills. How many of each does he have?
11. A sports coat has twice as many small buttons as large buttons. It takes 600 buttons to make 100 coats. How many of each size of button are on each coat?
12. Merle bought a tape and a CD for $27.45. The CD cost 48.45 more than the tape. What was the price of each?
13. A team picture and frame cost t$59.85. the frame cost twice as much as the picture. What did the picture cost?
14. A riding school has horses and trainers. Barbara counted 50 head and 164 feeet there. How many horses are there?
15. bruce scored 11 points more than Charles in basketsball. They scored a total of 61 points. how many points did the Bruce score?
呵呵` 要有公式哦!~

6: 7 Nickles 6 dimes (n+d)=13 5n+10d=95
7: (23+7)/2=15 girls. 15-7=8boys
8: (31+7)/2=19km Berthe 19-7=12km Matthewe
9: A=3 B=4 C=8 A+B=7 B+C=12 A*C=24 so the difference between A and C is 5.
10: The question misses some crucial information.
11: 600/100=6 buttons on each coat. 1s=2L s+l=6 thus Small=4 Large=2
12: The question does not make sense. I think you made a typo in the question. It should be $8.45more instead of 48.45more. Ok anyways, (27.45+4.45)/2 = 15.95(CD) 15.95-4.45=11.50 (tape)
13: 59.85/(2+1) = $19.95 for picture only
14: 4*H + 2*T = 164 H+T = 50, we get 2H +2T = 100, 2H = 164-100=54 H=32, T = 50-32 = 18. So 32Horses and 18 trainers.
15: (61-11)/2 = 25 Charles, 25+11=36 Bruce