Area = length *width
A = x²
3x² = (x+10)(x+12)
3x² = x²+10x+12x+120
3x² = x²+22x+120
3x²-3x² = x²+22x+120-3x²
0 = -2x²+22x+120
Factor to solve for x:
-2(x²-11x-60)
(x+4)(x-15)
x = -4 & x = 15 but we can't have a negative length so we eliminate 4. The length of the square is 15 cm.
Your answer is 250,000. There are two ways to do this problem.
1) Solve 500/4 to find out how many sheets of paper you get per every dollar. — Your answer is 125 sheets for $1. Then you multiply that answer by 2000, and get 250,000. Which means you get 250,000 sheets of paper for $2000.
2) You can divide 2000 by 4 & that gets you 500, you can then multiply that by 500 & you will get 250,000.
Hope this helps.
Answer:
£9,148.37 pounds
Step-by-step explanation:
you need to get the 1.4% of 8300 and add it to the next year
which will give £8,416.20
you repeat that again but with 8,416.20 to the 3rd year and so on and so forth
Answer: $556.50
Step-by-step explanation: 6% of 525 is 31.5 so 525 + 31.5 = 556.50$
