Answer:
“two negatives = positive” rule works for multiplication and division.
Step-by-step explanation:
-5 + (-3) example
imagine a number line with 0 in the center. From (0) You move left 5 places to (-5) on the number line. Now you move another 3 more to the left (-3) and land on (-8).
You are combining the negatives. I hope this helps.
Answer: 301.44
Explanation:
V = πr^2•h
3.14•4^2 • 6
Enrolement increased by 30% that means last year=100%
incease of 30%=30+100=130% now
now=182
percent means parts out of 100 so
130%=130/100=13/10
182=13/10 of x (x represents the number last year)
of means multipy so
182=13/10 times x
multiply both sides by 10/13 to clear fraction
182 times 10/13=x=140
140 students last year
Answer:
1. 9.576
2. 17.442
3. 45.29
4. 79.294
5. 30.736
6. 30.8
7. 31.5
8. 25.85
9. 53.29
10. 49.184
11. 15.18
12. 15.573
13. 17.075
14. 74.06
15. 9.01
Step-by-step explanation:
Use a multiplication method to find the answers. I would put it up here but i dont know how.