Answer:
number of math problems = 26
number of science problem = 16
Step-by-step explanation:
a total of 42 math and science problems for homework
Let m be the number of math problems and 's' be the number of science problems
![m+s=42](https://tex.z-dn.net/?f=m%2Bs%3D42)
You have 10 more math problems than science problems
![m=s+10](https://tex.z-dn.net/?f=m%3Ds%2B10)
substitute s+10 for m in the first equation
![m+s=42](https://tex.z-dn.net/?f=m%2Bs%3D42)
![s+10+s=42](https://tex.z-dn.net/?f=s%2B10%2Bs%3D42)
![2s+10=42](https://tex.z-dn.net/?f=2s%2B10%3D42)
subtract 10 from both sides
![2s = 32](https://tex.z-dn.net/?f=2s%20%3D%2032)
divide both sides by 2
![s= 16](https://tex.z-dn.net/?f=s%3D%2016)
![m=s+10](https://tex.z-dn.net/?f=m%3Ds%2B10)
![m=16+10](https://tex.z-dn.net/?f=m%3D16%2B10)
![m=26](https://tex.z-dn.net/?f=m%3D26)
number of math problems = 26
number of science problem = 16
Answer:
126 sq. meters
Step-by-step explanation:
A = lw
= 9(14)
= 126 sq. meter
Consider all graphs:
1. This is the graph of parabola that represents quadratic function ![y=-x^2.](https://tex.z-dn.net/?f=y%3D-x%5E2.)
2. This is the graph of hyperbola that represents function ![y=-\dfrac{1}{x+2}+2.](https://tex.z-dn.net/?f=y%3D-%5Cdfrac%7B1%7D%7Bx%2B2%7D%2B2.)
3. This is the square root's graph that represents function ![y=\sqrt{x+2}.](https://tex.z-dn.net/?f=y%3D%5Csqrt%7Bx%2B2%7D.)
4. This is the graph of exponential function ![y=-\left(\dfrac{1}{2}\right)^x+2.](https://tex.z-dn.net/?f=y%3D-%5Cleft%28%5Cdfrac%7B1%7D%7B2%7D%5Cright%29%5Ex%2B2.)
Answer: correct choice is D.
1000*12%*120/360= 40
Multiply 1000 times 12 percent times 120 over 360 and you get 40.