Answer:

Step-by-step explanation:
a reciprocal is a number that when multiplied by a given number gives 1 as product.
16 * x = 1
x = 1/16
9/10 * x = 1
x = 10/9
Answere:
its black
Step-by-step explanation:
black is better and im right
The answer is a. You find the area of each shape and add them
Answer:
The last answer; 12.
Step-by-step explanation:
In order to solve this, use substitution. Since it gives you an equation for y, substitute that equation in the other formula as y. This will give you:
Then simplify:
Since 6x - 6x cancels out, you are left with 12.

Answer:
4 : 5
Step-by-step explanation:
8 : 10
4 : 5
hope this was helpful : )