Answer:
93
Step-by-step explanation:
if you do 31 times 1 + 31 times 2, you get your answer
(i think that's right if not i'm sorry)
The first tank contains
486 gal - (4 gal/week) <em>t</em>
gal of water after <em>t</em> weeks.
Similarly, the second tank contains
648 gal - (7 gal/week) <em>t</em>
gal of water.
The tanks hold the same amount of water when these two amounts are equal:
486 gal - (4 gal/week) <em>t</em> = 648 gal - (7 gal/week) <em>t</em>
(7 gal/week) <em>t</em> - (4 gal/week) <em>t</em> = 648 gal - 486 gal
(3 gal/week) <em>t</em> = 162 gal
<em>t</em> = (162 gal) / (3 gal/week)
<em>t</em> = 54 weeks
Answer:
Wow that is great
Step-by-step explanation:
The answer is -6...
I got this by converting the problem into a variable problem.
-x*5=-30
Therefore, "x" is -6
Answer:
2 1/4
Step-by-step explanation:
To figure out how many pounds of jellybeans Betty has you need to subtract 6 and 3 3/4.
To subtract you need to turn 6 into a fraction by putting a 1 under it so it becomes 6/1
Then turn 3 3/4 into an improper fraction by multiply 3 by 4 which equals 12, then adding 3, so its 15/4.
Now subtract 6/1 by 15/4 but first multiply 1 by 4 and then multiply 6 by 4 so that the denominators are the same.
So now its 24/4 - 15/4
Now subtract across, which equals 9/4
This can be changed into a mixed number 2 1/4