12. 90/15 is 6. 6x2 is 12.
Answer:52
Step-by-step explanation:you just have to add the angles 66 and 62 which will give you 128 which you will subtract from 180 degrees which is the sum of all the angles in every triangle and you will get your answer 52
Answer:
.
Step-by-step explanation:
We need to write an equation for the amount of chemical B as a function of the amount of chemical A.


...(1)
where, k is constant of proportionality.
It is given that fifteen grams of chemical A is used to produce 3 grams of chemical B. It means a=15 and b=3.
Substitute a=15 and b=3 in (1).


Substitute
in (1).

Therefore, the required function is
.