Question

Jeff measured the mass of five paper clips and obtained these measurements:

2.1 g, 2.46 g, 2.98 g, 1.7 g, 2.44 g.

What was the total mass of the paper clips, recorded to the appropriate degree of precision?

A.
11.6 g

B.
11.68 g

C.
11.7 g

D.
12.0 g

Answer 1

Add them up, but round and keep only 1 decimal place, as that matches the least precise of your data.

Answer 2

i need help on doing it

Answer 3

Simply add, first. What do you get?

Answer 4

just wait

Answer 5

11.68

Answer 6

Right. Since 2.1 and 1.7 are known only to the tenths but not the hundredths, your total should be expressed as 11.x, where .x is what you get when you round up .68. What is the final answer?

Answer 7

i clicked it and it said it was wrong

Answer 8

11.7 is the correct answer.
.68 rounds up to .7.

Answer 9

Click that!

Answer 10

Are you clicking?

Answer 11

yea oh wait it was a glitch it was right

Answer 12

That's a relief.

Answer 13

Glad to have helped.

Answer 14

thx