263 grams dental stone powder
80 milliliters of water
if you use 70 grams of stone, how many milliliters of water are needed?

21.29 milliliters

Step-by-step explanation:

First find how much water is need for 1 gram of stone by dividing both numbers by 263. Then multiplying both numbers by 70.

Grams : Milliliters

263       80

1           : 0.3042 (Rounded to 4 decimal places)

70        : 21.29 (Rounded to 2 decimal places)

The answer to your question is the letter B.

Step-by-step explanation:

Data

major axis = 16

minor axis = 10

Process

1.- Calculate the value of a

       major axis = 2a = 16

                              a = 16/2

                              a = 8

2.- Calculate the value of b

       minor axis =2b = 10

                              b = 10/2

                              b = 5

3.- Write the equation of a vertical ellipse

 C = (0, 0) and h = 0, k= 0

4.- Write the equation of the ellipse

The right answer is B because the denominators are simplified.