NEED HELP NOW For an experiment, a scientist needs 12 cup baking soda for 45 liter of water. Using this ratio, how much baking soda is needed for one liter of water? ansewr choices:
A:4/10 cup

B:5/8 cup

C:8/5 cups

D:10/4 cups

4/15 cups

Step-by-step explanation:

If a cups scientist needs 12 cup baking soda for 45 liter of water, this can be expressed as;

12 cup of soda = 45 litres of water

To get the amount of soda needed for one litre, we will say;

x soda = 1 litre

Divide both equations;

12/x = 45/1

Cross multiply'45x = 12

x = 12/45

x = 4/15

Hence the required answer us 4/15 cups

hello from mrbilldoesmath!

answer:   x^2 + y^2 = 1024

discussion:

the equation of a circle with center (h,k) and radius "r" is

(x-h)^2 + (y-k)^2 = r^2.

in our case

(x-0)^2 + (y-0) ^2 = 32^2 = 1024

you,

mrb