Dr. marshall mixed 11.256 g of chemical a, 13.151 g of chemical b, and 8.607 g of chemical c to make 4 doses of medicine. round the weight of chemical a to the nearest gram.

The weight of chemical A to the nearest gram is 11 g

Step-by-step explanation:

we know that

To Round a number

a) Decide which is the last digit to keep  

b) Leave it the same if the next digit is less than (this is called rounding down)  

c) But increase it by   if the next digit is   or more (this is called rounding up)

In this problem we have

We want to keep the digit

The next digit is 2 which is less than , so no change is needed to

therefore

The weight of chemical A to the nearest gram is 11 g

1.0

step-by-step explanation:

there are 70 more legs than eyes at the dog show (196 – 126 = 70). dogs have two more legs than eyes, and humans have the same number of legs as eyes. thus 70 is twice the number of dogs at the show, so the number of dogs is half of 70, which is 35. to get the number of humans, subtract 35 from 63: 63 – 35 = 28.

step-by-step explanation: