Answer:
12
Step-by-step explanation:
3w = w + 8
-w -w
2w = 8
w = 4
4 + 8 = 12
The easiest way to do this is with cross-multiplication.
4 gallons for 30 plants is written as 4/30
x gallons for 45 plants is written as x/45
Multiply 4 x 45 = 180
divide by 30
= 6 gallons of water
Answer:
40.4%
Explanation:
if n is the starting population of india in 1989,
1989 - 1999: the population increases by 20%. n × 120% = 1.2n
1999 - 2009: the population increases by another 17%. 1.2n × 117% = 1.404n
thus, the population increased from n to 1.404n, which is an increase of 0.404n.
0.404 = 40.4%. the percentage by which the population of india increased is 40.4%.
sorry, i'm not too sure if my answer is correct, but i hope this helps! :D
The answer to solving for w is:
w = -14
Happy to help and just let me know if ya need extra help.
~Brooke❤️
