The average time it takes for a molecule to diffuse a distance of x cm is given by
t =
x
2D
where t is the time in seconds and D is the diffusion
coefficient. Given that the diffusion coefficient of
glucose is 5.7 x 10-7 cm, calculate the time it would
take for a glucose molecule to diffuse 10 um, which is
roughly the size of a cell.

3

step-by-step explanation:

because where the point where the 2 lines intersect is (3,-1) the x value is 3

multiply then divide

step-by-step explanation:

fabric (square meters)                   cloaks

7                                                           21

4/3                                                         4

step-by-step explanation:

we are told that harry needs 2 square meters of fabric for every 6 wizard cloaks he makes.

1. first of all we will find how many cloaks can be made from 1 square meter of fabric by dividing 6 by 2.

we can see that 3 cloaks can be made from 1 square meter of fabric. now we will multiply 3 by 7 to find number of cloaks made from 7 square meters of fabric.

therefore, harry will make 21 cloaks from 7 square meters of fabric.

2. let us find how many square meters of fabric will be needed to make 4 cloaks.

first of all we will find fabric needed for 1 cloak by dividing 2 by 6.

we can see that fabric needed for 1 cloak is   square meter. now we will multiply   by 4 to find fabric needed for 4 cloaks.