182k views
1 vote
4. Tia has 15 metamorphic, 8 igneous,

and 7 sedimentary rocks. She displays
her rocks equally in 2 cases. Which
shows how she found the number of
rocks to put in each case? (10-8)
A 2×16
B 16 2
C 2 × 30
D 30 2

Just stole this from my brothers book cause he asked me for help and I was lazy.

User Hakkar
by
8.5k points

1 Answer

7 votes

The answer is D) 30 ÷ 2 = 15.

Tia has a total of 15 + 8 + 7 = 30 rocks. She wants to display them equally in two cases, so she needs to divide the total number of rocks by 2:

30 ÷ 2 = 15

Therefore, Tia should put 15 rocks in each case.

User Joseph Chambers
by
7.5k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.