Answer:
The percentage of dextrose is this solution = 7.5 %
Step-by-step explanation:
A solution is made from 3 mL of dextrose in 40 mL total.
We can determine the percentage by dividing 3 mL by 40 mL and multiply the result by 100.
i.e.
3/40 × 100 = 0.075 × 100
= 7.5 %
Thus, the percentage of dextrose is this solution = 7.5 %
The answer to 4(y+6) is 4y+24
Answer:
2(3x + 7)(2x - 1)
Step-by-step explanation:
You can see it a little easier if you take out a common factor of 2
2(6x^2 + 11x - 7)
The 6 leaves you with a lot of factors, the 7 does not. It only has 2 factors.
Let 6 factor into 2 and 3 and the 7 into 7 and 1
2(3x - 1 )(2x + 7)
Now remove the brackets.
2(6x^2 + 21x - 2x - 7) This obviously does not work but we'll combine like terms anyway.
2(6x^2 + 19x - 7)
So we'll try it again
2(3x + 7)(2x - 1)
2(6x^2 + 14x - 3x - 7) Looks like we have it.
2(6x^2 + 11x - 7)
So the right factors are
2(3x + 7)(2x - 1)
Answer:
1
Step-by-step explanation:
Because 2 times 1 is 2 plus 1 is equal to 3
