A Andreas dad weighs 91 k.
B Andrea and her dad both weigh 91 k.
It is 50 thousands because 5 times 10 = 50.
No a milliliter is the same amount as a centimeter
It would be C and here's why:
you originally start with 3x² - 14x - 5. The AC method to factoring says you have to get two middle terms that multiply to whatever 3 × -5 is and have to add to -14. Well 3 × -5 is -15. Raul chose two middle terms of 15x and -1x and 15 × -1 is -15 so that part is correct. However 15 - 1 = 14. The middle term of our original trinomial is -14 so "<span>The two middle coefficients multiply to the correct number, but do not add to the correct number."</span>
If a number is 40% more than another number, we can say that the new number is equivalent to the sum of the old number and 40% of the old number. Let's try to represent this as an equation. First, let's convert the percentage to a fraction:

Defining
as the new number and
as the old number, we can say:

Also, we can say:

To solve, let's substitute the first equation into the second equation for
and simplify.


- Get terms over common denominator



We now have found the old number. Using the second equation we found near the beginning, let's find
.


The numbers are 35 and 49.