Question

Three students weigh a 10.2mg copper sample in a Chemistry lab. Which student was the most accurate? (all in mg)

Brad: 10.1
Brandon: 10.23
Meagan: 10 ​

Answer 1

Brandon's measurement

Explanation:

Simply subtract each persons result from the actual sample size:

Brad: 10.2 - 10.1 = 0.1mg away

Brandon: 10.23 - 10.2 = -0.03, so 0.03mg away

Meagan: 10.2 - 10 = 0.2mg away

Brandon's measurement was closest.

Hope this helps!

Answer 2

Brandon

Explanation:

he is 0.03 away

Brad is 0.1 away

meagan is 0.2 away