Question

For a geology project, Chelsea collected 16.5 kg of rocks on the first expedition and 14.7 kg on the second expedition. Ari collected the same total kilograms of rocks as Chelsea did, but he collected only 13.9 kg on the first expedition.

How much did Ari collect on the second expedition?

A.
31.2 kg

B.
17.3 kg

C.
2.6 kg

D.
14.7 kg

Answer 1

will fan and medal

Answer 2

We need to set the amount of rocks Chelsea collected equal to the amount of rocks Ari collected

Answer 3

First step is to find out how much Chelsea collected in total right?
So on her first expedition she collected 16.5 and on the second she collected 14.7
Therefore the total amount she collected would be 16.5 + 14.7 = ?

Answer 4

For a geology project, Chelsea collected 16.5 kg of rocks on the first expedition and 14.7 kg on the second expedition. `Ari collected the same total kilograms of rocks as Chelsea did`, but he collected only 13.9 kg on the first expedition.

That's the big hint right there.

Answer 5

So to find our Ari's 2nd expedition

Ari's second expedition = (total of Chelsea's 1st and 2nd expedition) - Ari's 1st expedition

Answer 6

i still dont quite get it
:(((((((((

Answer 7

ohhh its b

Answer 8

thx @Jhannybean