The weights of bags of ready-to-eat salad are normally distributed with a mean of 290 grams and a standard deviation of 10 grams.

what percent of the bags weigh less than 280 grams?

13.5%

16%

34%

36.5%

Second option is correct.

Step-by-step explanation:

Since we have given that

Mean = 290 grams

Standard deviation = 10 grams

Since the weight of bags of ready-to-eat salad are normally distributed.

We need to find the percent of the bags weigh less than 280 grams.

As we know that

(Using the normally distribution table)

If we change it into percentage.

Hence, Second option is correct.

i assume that by 5 you mean 5 gallons.

(20)(0.25) = 15

removing 15 gallons reduces the tank from 20 to 5.

c

step-by-step explanation:

because of the levels