Me

the table shows the weights of 3 samples from an experiment.

which estimate is reasonable for the total weight of all 3 samples?

a. 1.25 g

b. 3.75 g

c. 5.5 g

d. 6.5 g

sample number weight (g)

1 1.25050

2 2.50055

3 2.74099

D. 6.5 g

Step-by-step explanation:

From the given table , weight of sample 1 = 1.25050 g

Weight of sample 2 = 2.50055 g

Weight of sample 1 =  2.74099 g

The total weight of all the 3 samples=

Therefore, the total weight of all the 3 samples=

Since,

Thus, the estimated total weight of all 3 samples= 6.5 g

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

whatvare the choices

step-by-step explanation: