# math check please

posted by
**larry**
.

1 four buttons have diameters of 5/8 , 3/4, 9/16, and 7/8 which buttons is smallest?

answer 9/16

2. I spent 1/3 of my time doing math homework and 2/7 preparing for a history test . what fraction of study time remain?

answer: 13/21

3. least common multiple of 3, 6, 9

answer 18

4. Tom practiced 1 1/2 hrs monday , 3 3/4 hrs tuesday and 2 1/4 hrs wednesday what is the total number of hours practiced?

answer 7 1/2 hours

5. perform the indicated operations

6 2/9 + 1 3/4 - 3 5/6

Answer 4 5/36

6. divide

19.41 by 6

answer 3.235

7. round to the indicated decimal plavce 26.1978 three decimal places

answer 26.198

8. A triangle has a base 13 ft and altitude of 6 ft Find its area.

Answer 78ft^2

I was not sure on this i went with the A+L X W

9. Television cost $815.56 with interest. I paid $250.00 down and agreeded to pay the remainder over next 18 months what amount will i pay per month?

answer $31.42 per month

10. Write a proportion that is equivalent to the statement If 3 gallons of gasoline cost $5.37 then 8 gallons will cost $14.32.

answer

3 gal/$5.37 = 8 gal?/14.32

11. Approximately 5 out of every student at Kenda college lives on campus the college has 5,000 students How many of them live on campus?

answer 2,500 students

12. Find the best buy on cashews (1 lb. is 16 oz.)

A. 1 lb for $6.09

B. 10 oz for $4.59

C. 1 lb 4 oz for $7.09

D. 12 oz for $5.09

answer C

please let me know if i missed any these so i can go back over to see where i messed up thanks