Answer:
A
Step-by-step explanation:
When you read the question it says that her average speed from the library to the gym is 15 mph less than her speed from her home to the library. So x - 15 is what describes that situation.
If it is A it cannot be anything else.
B is incorrect. x - 15 is not a time. It is a rate. It can be used to develop the amount of time, but by itself it is still A.
C is incorrect. Her average speed from her house to the library is x
D is incorrect. The distance is given as the same as from her home to the library as from the library to the gym. Both are 4
Answer:
A. 10 B. 15
Step-by-step explanation:
A. 25/1 * 2/5= 50/5
reduced it is 10
B. 25-10=15
Answer:
B.
Step-by-step explanation:
Causation is often confused with correlation because they are so similar. B would mean that pollution is caused from something (lets say greenhouse gases for example) which then results in more cases of heart disease.
Causation is when the first variable may bring the second into existence or may cause the incidence of the second variable to fluctuate. So, causation is the capacity of one variable to influence another. Which, would make B, a suitable candidate.
Answer:
3 and 5
Step-by-step explanation:
Let the two consecutive odd integers be x and x + 2.
Now,
The given statement is
![x^2 + 3 \times (x+2)=24\\x^2 + 3x+6-24 = 0 \\x^2 + 3x-18 = 0\\x^2+6x-3x-18=0\\x(x+6)-3(x+6)=0\\(x-3)(x+6)=0\\x=3,-6](https://tex.z-dn.net/?f=x%5E2%20%2B%203%20%5Ctimes%20%28x%2B2%29%3D24%5C%5Cx%5E2%20%2B%203x%2B6-24%20%3D%200%20%5C%5Cx%5E2%20%2B%203x-18%20%3D%200%5C%5Cx%5E2%2B6x-3x-18%3D0%5C%5Cx%28x%2B6%29-3%28x%2B6%29%3D0%5C%5C%28x-3%29%28x%2B6%29%3D0%5C%5Cx%3D3%2C-6)
Taking x=3.
Hence, two consecutive odd integers are 3 and 5.