Answer:
If neither of the two real numbers is zero, then their product is also not zero Suppose also that x is a real number that satisfies the equation The " / " symbol does not always give you a result of an integer, so be careful.pkek, and any other expression for n as a product of prime numbers is identical to this except,.
Step-by-step explanation:
Answer:
20 x 57^x / 10^x
Step-by-step explanation:
Answer: ![\bold{C)\ -\dfrac{1}{2}}](https://tex.z-dn.net/?f=%5Cbold%7BC%29%5C%20-%5Cdfrac%7B1%7D%7B2%7D%7D)
<u>Step-by-step explanation:</u>
![.\qquad \dfrac{x+2}{15}=\dfrac{x+1}{5}\\\\\\\rightarrow (15)\dfrac{x+2}{15}=\dfrac{x+1}{5}(15)\\\\\\\rightarrow x+2=3(x+1)\\\\\rightarrow x+2=3x+3\\\\\rightarrow \qquad 2=2x+3\\\\\rightarrow \qquad -1=2x\\\\\rightarrow \qquad -\dfrac{1}{2}=x](https://tex.z-dn.net/?f=.%5Cqquad%20%5Cdfrac%7Bx%2B2%7D%7B15%7D%3D%5Cdfrac%7Bx%2B1%7D%7B5%7D%5C%5C%5C%5C%5C%5C%5Crightarrow%20%2815%29%5Cdfrac%7Bx%2B2%7D%7B15%7D%3D%5Cdfrac%7Bx%2B1%7D%7B5%7D%2815%29%5C%5C%5C%5C%5C%5C%5Crightarrow%20x%2B2%3D3%28x%2B1%29%5C%5C%5C%5C%5Crightarrow%20x%2B2%3D3x%2B3%5C%5C%5C%5C%5Crightarrow%20%5Cqquad%202%3D2x%2B3%5C%5C%5C%5C%5Crightarrow%20%5Cqquad%20-1%3D2x%5C%5C%5C%5C%5Crightarrow%20%5Cqquad%20-%5Cdfrac%7B1%7D%7B2%7D%3Dx)
Answer:
40 students
Step-by-step explanation:
In this problem, one is given the ratio ( 8 : 3 ), since a ratio is another way of writing a fraction one can rewrite it as;
(8) represent the number of students who want to learn about magnets, and (3) represents the number of students who want to learn about magic tricks.
In the problem, it is also given that 25 more students wanted to learn about magnets compared to magic tricks. If one uses the parameter (x) to represent the factor by which the fraction
is reduced, then one can get the equation;
8x = 3x + 25
Use inverse operations to solve,
8x = 3x + 25
-3x
5x = 25
/5
x = 5
Substitute back in to find out how many students want to learn about magnets,
8x
= 8(5)
= 40