Answer:
The tank has a capacity of 6000 liters
2.75 cubic meters of concrete
Step-by-step explanation:
Answer:
Step-by-step explanation:
<u>Given system:</u>
<u>Multiply the first equation by 7 and add up the equations:</u>
- -7x + 7y + 7x + 3y = 7*8 - 16
- 10y = 40
- y = 4
<u>Find y:</u>
23 lines × 5 trees= 115 tree. or. 5 lines × 23 trees = 115 trees