Answer:
E
Step-by-step explanation:
19) Amount of oil in = amount of oil in final product
.025(x) + .09(40-x) = .055(40) (x = 2.5% amt 40 - x = 9% amt)
x = 21.54 L of 2.5 % then 9% = 18.46 L
Answer:
110%
Step-by-step explanation:
1 2/20=22/20 which = 110%
Total=sum of parts
Total= trinomial 1 + trinomial 2
Also, total - trinomial 1=trinomial 2
7x² - 5x + 4 -(3x² + 2x - 1)=missing trinomial
7x²-5x+4+(-1 )(3x²+2x-1 ) distribution of -1
7x²-5x+4+(-1)(3x²)+(-1)(2x)-(-1)(1)
7x²-5x+4-3x²-2x+1 simplified
7x²-3x²-5x-2x+4+1 commutative
4x²-7x+5 SOLUTION
Answer:
720
Step-by-step explanation:
I got it from Quora
We can use 6 people without repetition, which means we simply have to use counting principle 1.
A number of n objects can be arranged in n! ways.
Total number of combinations possibles = 6! =720
He was meant to divide by 3 when the equation was 3x=15, not multiply, so he would get the answer x=5
