Is it a riddle? No dirt is in the hole. But 72ft^3 of air...
Answer:
Picture above
Step-by-step explanation:
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Answer:
9. 4x<12
10. x (greater than or equal to) 6
11. 9x>36
12. x (greater than or equal to) -5
13. x>15
14. x (less than or equal to) -30
15. x>-48
16. x<1
Step-by-step explanation:
i hope this helps :)
No, its extra information
Answer:
- 40 popcorns and 90 pretzels sold.
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Let the number of popcorns is x and pretzels is y.
Set up equations:
- x + y = 130
- 2.5x + 2y = 280
Solve by elimination, multiply the first equation by 2 and subtract from the second equation:
- 2.5x + 2y - 2x - 2y = 280 - 2*130
- 0.5x = 280 - 260
- 0.5x = 20
- x = 20/0.5
- x = 40
Find y:
- 40 + y = 130
- y = 130 - 40
- y = 90
