you have the ratio of natural:synthetic so;
3:4
3+4=7
357/7=51
3*51:4°51
153:204
therefore, it'd be 204 litres of synthetic oil!!
i hope this helps you!!
The answer is -4 because -4^7=-16384
Answer and Explanation:
Gina wanted to swim at the pool. She is allowed to spend at most $30. The cost to swim in the pool is 3 dollars per hour plus a flat fee of $3. How many hours can Gina swim without going over her spending limit?
This problem can be represented by
.
'x' would be the number of hours. "At most" means less than or equal to. So, the value of x would have to be less than or equal to 30.
![3x+3\leq 30-3\\\\3x\leq 27\\\\3x/3\leq 27/3\\\\\boxed{x\leq9}](https://tex.z-dn.net/?f=3x%2B3%5Cleq%2030-3%5C%5C%5C%5C3x%5Cleq%2027%5C%5C%5C%5C3x%2F3%5Cleq%2027%2F3%5C%5C%5C%5C%5Cboxed%7Bx%5Cleq9%7D)
So, Gina would have a maximum of 9 hours to swim in the pool.
Hope this helps.
answer
D 2
factor
factor the equation
into (x + a) and (x + b) so that a + b = -2 and a * b = -8
the two numbers that meet these conditions are a = -4 and b = 2
![x^{2} - 2x - 8 = (x - 4)(x + 2)](https://tex.z-dn.net/?f=x%5E%7B2%7D%20-%202x%20-%208%20%3D%20%28x%20-%204%29%28x%20%2B%202%29)
find solutions
set both (x - 4) and (x + 2) equal to zero to find your solutions
x - 4 = 0
x = 4
x + 2 = 0
x = -2
add solutions
since the two solutions are x = 4 and x = -2, add them together to get your final answer
4 + (-2) = 2