Answer:
2(s + 5) = 2s + 10, not 2s - 10
2s - 10 = 2s + 10

Answer:
7
Step-by-step explanation:
The coefficient of a variable is simply the number it's being multiplied by or the number that is in front of it. In this case, the coefficient of y is 7.
21 because you have to have at least 1 side as 3m so the other two should be 9m to have the greatest possible length
300 / 150 = 200 / d
30000 / 300d
d = 30000 / 300
d = 100
Answer: The required number of boys in the class is 18.
Step-by-step explanation: Given that in math class, the girl to boy ratio is 8 to 6 and there are 24 girls in the class.
We are to find the number of boys in the class.
Let 8x and 6x represents the number of girls and boys in the class.
Then, according to the given information, we have

Therefore, the number of boys in the class is given by

Thus, the required number of boys in the class is 18.